Attachment 338768 Details for Bug 184838 – Patch

[patch] Patch

bug-184838-20180425120847.patch (text/plain), 70.27 KB, created by Keith Rollin on 2018-04-25 12:09:15 PDT

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Creator: Keith Rollin

Created: 2018-04-25 12:09:15 PDT

Size: 70.27 KB

patch

obsolete

>Subversion Revision: 231007
>diff --git a/Source/WTF/ChangeLog b/Source/WTF/ChangeLog
>index 34d6827d443005a444b7776ab3b9c9a90e337774..50dd4e048883678a3437df73abf05b5d09227c02 100644
>--- a/Source/WTF/ChangeLog
>+++ b/Source/WTF/ChangeLog
>@@ -1,3 +1,17 @@
>+2018-04-24  Keith Rollin  <krollin@apple.com>
>+
>+        Add facility for tracking times and results of page and resource loading
>+        https://bugs.webkit.org/show_bug.cgi?id=184838
>+        rdar://problem/36548974
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Define USE_NETWORK_ACTIVITY to enable/disable the
>+        NetworkActivityTracker facility. Define HAVE_NW_ACTIVITY to enable a
>+        particular implementation of NetworkActivityTracker.
>+
>+        * wtf/Platform.h:
>+
> 2018-04-25  Dean Jackson  <dino@apple.com>
> 
>         Make a better flag for system preview, and disable it where necessary
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index e9fa25b4c4234576a38122d30758a2290e4068bb..a282e6b31ae3a75ae1654f4386c92d1898f1be95 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,27 @@
>+2018-04-24  Keith Rollin  <krollin@apple.com>
>+
>+        Add facility for tracking times and results of page and resource loading
>+        https://bugs.webkit.org/show_bug.cgi?id=184838
>+        rdar://problem/36548974
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Update FrameProgressTracker to send the necessary page load start/stop
>+        signals so that we can track the entire page load at a network level.
>+        Add an empty override of the pure virtual
>+        LoaderStrategy::pageLoadCompleted method.
>+
>+        No new tests. There is no testable effect from these changes. On
>+        Cocoa, measurable changes take place in another (non-WebKit) process.
>+        On non-Cocoa systems, this facility is currently disabled.
>+
>+        * loader/FrameLoader.cpp:
>+        (WebCore::FrameLoader::FrameProgressTracker::FrameProgressTracker):
>+        (WebCore::FrameLoader::FrameProgressTracker::progressCompleted):
>+        (WebCore::FrameLoader::init):
>+        (WebCore::FrameLoader::initForSynthesizedDocument):
>+        * loader/LoaderStrategy.h:
>+
> 2018-04-25  Youenn Fablet  <youenn@apple.com>
> 
>         CachedRawResource is not handling incremental data computation correctly
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index 71271e8690ea0fe06a7e83325352449970c19051..408cbd92dfed904c0fe7d6c87f2ed5e5e850cc5b 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,90 @@
>+2018-04-24  Keith Rollin  <krollin@apple.com>
>+
>+        Add facility for tracking times and results of page and resource loading
>+        https://bugs.webkit.org/show_bug.cgi?id=184838
>+        rdar://problem/36548974
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Add NetworkActivityTracker. The idea behind this facility is to create
>+        and destroy them around networking activity that we want to track for
>+        the purpose of measuring overall network health. They can be created
>+        around the loading of pages or individual resources, and can be
>+        arranged in a parent/child hierarchy to indicate what pages the
>+        resources are part of. The NetworkActivity tracker tracks load times
>+        and results. On Cocoa, it can be integrated with CFNetwork in order to
>+        associate WebKit activity with low-level networking activity.
>+
>+        * CMakeLists.txt:
>+        * Configurations/WebKit.xcconfig:
>+        * NetworkProcess/NetworkActivityTracker.cpp: Added.
>+        (WebKit::NetworkActivityTracker::NetworkActivityTracker):
>+        (WebKit::NetworkActivityTracker::~NetworkActivityTracker):
>+        (WebKit::NetworkActivityTracker::setParent):
>+        (WebKit::NetworkActivityTracker::start):
>+        (WebKit::NetworkActivityTracker::complete):
>+        * NetworkProcess/NetworkActivityTracker.h: Added.
>+        (WebKit::NetworkActivityTracker::get):
>+        * NetworkProcess/NetworkConnectionToWebProcess.cpp:
>+        (WebKit::NetworkConnectionToWebProcess::didClose):
>+        (WebKit::NetworkConnectionToWebProcess::pageLoadCompleted):
>+        (WebKit::networkActivityTrackingEnabled):
>+        (WebKit::NetworkConnectionToWebProcess::startTrackingResourceLoad):
>+        (WebKit::NetworkConnectionToWebProcess::stopTrackingResourceLoad):
>+        (WebKit::NetworkConnectionToWebProcess::stopAllNetworkActivityTracking):
>+        (WebKit::NetworkConnectionToWebProcess::stopAllNetworkActivityTrackingForPage):
>+        (WebKit::NetworkConnectionToWebProcess::findRootNetworkActivity):
>+        (WebKit::NetworkConnectionToWebProcess::findNetworkActivityTracker):
>+        * NetworkProcess/NetworkConnectionToWebProcess.h:
>+        (WebKit::NetworkConnectionToWebProcess::ResourceNetworkActivityTracker::ResourceNetworkActivityTracker):
>+        * NetworkProcess/NetworkConnectionToWebProcess.messages.in:
>+        * NetworkProcess/NetworkDataTask.cpp:
>+        (WebKit::NetworkDataTask::create):
>+        * NetworkProcess/NetworkLoadParameters.h:
>+        * NetworkProcess/NetworkProcess.cpp:
>+        (WebKit::NetworkProcess::initializeNetworkProcess):
>+        * NetworkProcess/NetworkProcess.h:
>+        (WebKit::NetworkProcess::trackNetworkActivity const):
>+        * NetworkProcess/NetworkProcessCreationParameters.cpp:
>+        (WebKit::NetworkProcessCreationParameters::encode const):
>+        (WebKit::NetworkProcessCreationParameters::decode):
>+        * NetworkProcess/NetworkProcessCreationParameters.h:
>+        * NetworkProcess/NetworkResourceLoader.cpp:
>+        (WebKit::NetworkResourceLoader::start):
>+        (WebKit::NetworkResourceLoader::cleanup):
>+        (WebKit::NetworkResourceLoader::abort):
>+        (WebKit::NetworkResourceLoader::didFinishLoading):
>+        (WebKit::NetworkResourceLoader::didFailLoading):
>+        (WebKit::NetworkResourceLoader::didRetrieveCacheEntry):
>+        (WebKit::NetworkResourceLoader::continueProcessingCachedEntryAfterDidReceiveResponse):
>+        * NetworkProcess/NetworkResourceLoader.h:
>+        * NetworkProcess/cocoa/NetworkActivityTrackerCocoa.mm: Added.
>+        (WebKit::NetworkActivityTracker::NetworkActivityTracker):
>+        (WebKit::NetworkActivityTracker::~NetworkActivityTracker):
>+        (WebKit::NetworkActivityTracker::setParent):
>+        (WebKit::NetworkActivityTracker::start):
>+        (WebKit::NetworkActivityTracker::complete):
>+        * NetworkProcess/cocoa/NetworkDataTaskCocoa.h:
>+        * NetworkProcess/cocoa/NetworkDataTaskCocoa.mm:
>+        (WebKit::NetworkDataTaskCocoa::NetworkDataTaskCocoa):
>+        * UIProcess/API/APIProcessPoolConfiguration.cpp:
>+        (API::ProcessPoolConfiguration::copy):
>+        * UIProcess/API/APIProcessPoolConfiguration.h:
>+        * UIProcess/API/C/WKContextConfigurationRef.cpp:
>+        (WKContextConfigurationTrackNetworkActivity):
>+        (WKContextConfigurationSetTrackNetworkActivity):
>+        * UIProcess/API/C/WKContextConfigurationRef.h:
>+        * UIProcess/API/Cocoa/_WKProcessPoolConfiguration.h:
>+        * UIProcess/API/Cocoa/_WKProcessPoolConfiguration.mm:
>+        (-[_WKProcessPoolConfiguration trackNetworkActivity]):
>+        (-[_WKProcessPoolConfiguration setTrackNetworkActivity:]):
>+        * UIProcess/WebProcessPool.cpp:
>+        (WebKit::WebProcessPool::ensureNetworkProcess):
>+        * WebKit.xcodeproj/project.pbxproj:
>+        * WebProcess/Network/WebLoaderStrategy.cpp:
>+        (WebKit::WebLoaderStrategy::pageLoadCompleted):
>+        * WebProcess/Network/WebLoaderStrategy.h:
>+
> 2018-04-25  Youenn Fablet  <youenn@apple.com>
> 
>         Ensure DNT is set for redirections handled in NetworkProcess
>diff --git a/Source/WebKitLegacy/ChangeLog b/Source/WebKitLegacy/ChangeLog
>index 688b84e012d977c903d3490fb86e2420d8570f5c..442648c8be10cf4931f4f23fc478140fac17d45c 100644
>--- a/Source/WebKitLegacy/ChangeLog
>+++ b/Source/WebKitLegacy/ChangeLog
>@@ -1,3 +1,18 @@
>+2018-04-24  Keith Rollin  <krollin@apple.com>
>+
>+        Add facility for tracking times and results of page and resource loading
>+        https://bugs.webkit.org/show_bug.cgi?id=184838
>+        rdar://problem/36548974
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Add an empty override of the pure virtual
>+        LoaderStrategy::pageLoadCompleted method.
>+
>+        * WebCoreSupport/WebResourceLoadScheduler.cpp:
>+        (WebResourceLoadScheduler::pageLoadCompleted):
>+        * WebCoreSupport/WebResourceLoadScheduler.h:
>+
> 2018-04-16  Youenn Fablet  <youenn@apple.com>
> 
>         Use NetworkLoadChecker to handle synchronous HTTP loads
>diff --git a/Source/WTF/wtf/Platform.h b/Source/WTF/wtf/Platform.h
>index d9ba17666cff89c344e5ae967c340e0bf1aab2ee..9e9715debaf312dfff6936826a17f548642cc5e1 100644
>--- a/Source/WTF/wtf/Platform.h
>+++ b/Source/WTF/wtf/Platform.h
>@@ -1271,6 +1271,14 @@
> #endif
> #endif
> 
>+#if USE(APPLE_INTERNAL_SDK) && __has_include(<nw/activity.h>)
>+#define HAVE_NW_ACTIVITY 1
>+#endif
>+
>+#if HAVE(NW_ACTIVITY)
>+#define USE_NETWORK_ACTIVITY 1
>+#endif
>+
> #if PLATFORM(COCOA)
> #define HAVE_SEC_TRUST_SERIALIZATION 1
> #endif
>diff --git a/Source/WebCore/loader/FrameLoader.cpp b/Source/WebCore/loader/FrameLoader.cpp
>index 97cf0b68e114f17a56f041aa7ab084f35002f0d5..07cfbf4411724cc9e974e1ba56ff6650c66e42c5 100644
>--- a/Source/WebCore/loader/FrameLoader.cpp
>+++ b/Source/WebCore/loader/FrameLoader.cpp
>@@ -226,8 +226,9 @@ struct ForbidPromptsScope {
> class FrameLoader::FrameProgressTracker {
>     WTF_MAKE_FAST_ALLOCATED;
> public:
>-    explicit FrameProgressTracker(Frame& frame)
>+    explicit FrameProgressTracker(Frame& frame, FrameLoaderClient& client)
>         : m_frame(frame)
>+        , m_client(client)
>         , m_inProgress(false)
>     {
>     }
>@@ -252,10 +253,14 @@ public:
>         ASSERT(m_frame.page());
>         m_inProgress = false;
>         m_frame.page()->progress().progressCompleted(m_frame);
>+
>+        if (m_client.pageID())
>+            platformStrategies()->loaderStrategy()->pageLoadCompleted(m_client.pageID().value());
>     }
> 
> private:
>     Frame& m_frame;
>+    FrameLoaderClient& m_client;
>     bool m_inProgress;
> };
> 
>@@ -313,7 +318,7 @@ void FrameLoader::init()
>     m_stateMachine.advanceTo(FrameLoaderStateMachine::DisplayingInitialEmptyDocument);
> 
>     m_networkingContext = m_client.createNetworkingContext();
>-    m_progressTracker = std::make_unique<FrameProgressTracker>(m_frame);
>+    m_progressTracker = std::make_unique<FrameProgressTracker>(m_frame, m_client);
> }
> 
> void FrameLoader::initForSynthesizedDocument(const URL&)
>@@ -338,7 +343,7 @@ void FrameLoader::initForSynthesizedDocument(const URL&)
>     m_needsClear = true;
> 
>     m_networkingContext = m_client.createNetworkingContext();
>-    m_progressTracker = std::make_unique<FrameProgressTracker>(m_frame);
>+    m_progressTracker = std::make_unique<FrameProgressTracker>(m_frame, m_client);
> }
> 
> void FrameLoader::setDefersLoading(bool defers)
>diff --git a/Source/WebCore/loader/LoaderStrategy.h b/Source/WebCore/loader/LoaderStrategy.h
>index 67d30cf11f6abfa7598e8c4cb8c9a881a277b345..2f5efeb6b86b8a0669e341eb5e46915911038044 100644
>--- a/Source/WebCore/loader/LoaderStrategy.h
>+++ b/Source/WebCore/loader/LoaderStrategy.h
>@@ -58,6 +58,7 @@ class WEBCORE_EXPORT LoaderStrategy {
> public:
>     virtual void loadResource(Frame&, CachedResource&, ResourceRequest&&, const ResourceLoaderOptions&, CompletionHandler<void(RefPtr<SubresourceLoader>&&)>&&) = 0;
>     virtual void loadResourceSynchronously(FrameLoader&, unsigned long identifier, const ResourceRequest&, ClientCredentialPolicy, const FetchOptions&, const HTTPHeaderMap&, ResourceError&, ResourceResponse&, Vector<char>& data) = 0;
>+    virtual void pageLoadCompleted(uint64_t webPageID) = 0;
> 
>     virtual void remove(ResourceLoader*) = 0;
>     virtual void setDefersLoading(ResourceLoader*, bool) = 0;
>diff --git a/Source/WebKit/CMakeLists.txt b/Source/WebKit/CMakeLists.txt
>index b9398200c69e86f14dc596fbea52a054770495cd..f1d03e4736be24b72c68939a9fe859859a5b883b 100644
>--- a/Source/WebKit/CMakeLists.txt
>+++ b/Source/WebKit/CMakeLists.txt
>@@ -97,14 +97,7 @@ set(WebKit_SYSTEM_INCLUDE_DIRECTORIES
> )
> 
> set(WebKit_SOURCES
>-    NetworkProcess/Cookies/WebCookieManager.cpp
>-
>-    NetworkProcess/Downloads/Download.cpp
>-    NetworkProcess/Downloads/DownloadManager.cpp
>-    NetworkProcess/Downloads/PendingDownload.cpp
>-
>-    NetworkProcess/FileAPI/NetworkBlobRegistry.cpp
>-
>+    NetworkProcess/NetworkActivityTracker.cpp
>     NetworkProcess/NetworkCORSPreflightChecker.cpp
>     NetworkProcess/NetworkConnectionToWebProcess.cpp
>     NetworkProcess/NetworkContentRuleListManager.cpp
>@@ -122,6 +115,14 @@ set(WebKit_SOURCES
>     NetworkProcess/PingLoad.cpp
>     NetworkProcess/PreconnectTask.cpp
> 
>+    NetworkProcess/Cookies/WebCookieManager.cpp
>+
>+    NetworkProcess/Downloads/Download.cpp
>+    NetworkProcess/Downloads/DownloadManager.cpp
>+    NetworkProcess/Downloads/PendingDownload.cpp
>+
>+    NetworkProcess/FileAPI/NetworkBlobRegistry.cpp
>+
>     NetworkProcess/cache/CacheStorageEngine.cpp
>     NetworkProcess/cache/CacheStorageEngineCache.cpp
>     NetworkProcess/cache/CacheStorageEngineCaches.cpp
>diff --git a/Source/WebKit/Configurations/WebKit.xcconfig b/Source/WebKit/Configurations/WebKit.xcconfig
>index c379a17e97cb42637e7cf43a4dd7d98d31a91c90..96ec4acd1f7d09741498f1ef3fcb401126a182be 100644
>--- a/Source/WebKit/Configurations/WebKit.xcconfig
>+++ b/Source/WebKit/Configurations/WebKit.xcconfig
>@@ -112,7 +112,7 @@ WK_SAFE_BROWSING_LDFLAGS_MACOS_SINCE_1013 = -weak_framework SafariSafeBrowsing;
> WK_UIKIT_LDFLAGS = $(WK_UIKIT_LDFLAGS_$(WK_COCOA_TOUCH));
> WK_UIKIT_LDFLAGS_cocoatouch = -framework UIKit;
> 
>-FRAMEWORK_AND_LIBRARY_LDFLAGS = -lobjc -framework CFNetwork -framework CoreAudio -framework CoreFoundation -framework CoreGraphics -framework CoreText -framework Foundation -framework ImageIO -framework IOKit -framework WebKitLegacy $(WK_ACCESSIBILITY_LDFLAGS) $(WK_APPKIT_LDFLAGS) $(WK_ASSERTION_SERVICES_LDFLAGS) $(WK_CARBON_LDFLAGS) $(WK_CORE_PDF_LDFLAGS) $(WK_CORE_PREDICTION_LDFLAGS) $(WK_CORE_SERVICES_LDFLAGS) $(WK_GRAPHICS_SERVICES_LDFLAGS) $(WK_IOSURFACE_LDFLAGS) $(WK_LIBWEBRTC_LDFLAGS) $(WK_MOBILE_CORE_SERVICES_LDFLAGS) $(WK_MOBILE_GESTALT_LDFLAGS) $(WK_OPENGL_LDFLAGS) $(WK_PDFKIT_LDFLAGS) $(WK_SAFE_BROWSING_LDFLAGS) $(WK_UIKIT_LDFLAGS);
>+FRAMEWORK_AND_LIBRARY_LDFLAGS = -lobjc -framework CFNetwork -framework CoreAudio -framework CoreFoundation -framework CoreGraphics -framework CoreText -framework Foundation -framework ImageIO -framework IOKit -framework WebKitLegacy -lnetwork $(WK_ACCESSIBILITY_LDFLAGS) $(WK_APPKIT_LDFLAGS) $(WK_ASSERTION_SERVICES_LDFLAGS) $(WK_CARBON_LDFLAGS) $(WK_CORE_PDF_LDFLAGS) $(WK_CORE_PREDICTION_LDFLAGS) $(WK_CORE_SERVICES_LDFLAGS) $(WK_GRAPHICS_SERVICES_LDFLAGS) $(WK_IOSURFACE_LDFLAGS) $(WK_LIBWEBRTC_LDFLAGS) $(WK_MOBILE_CORE_SERVICES_LDFLAGS) $(WK_MOBILE_GESTALT_LDFLAGS) $(WK_OPENGL_LDFLAGS) $(WK_PDFKIT_LDFLAGS) $(WK_SAFE_BROWSING_LDFLAGS) $(WK_UIKIT_LDFLAGS);
> 
> // Prevent C++ standard library operator new, delete and their related exception types from being exported as weak symbols.
> UNEXPORTED_SYMBOL_LDFLAGS = -Wl,-unexported_symbol -Wl,__ZTISt9bad_alloc -Wl,-unexported_symbol -Wl,__ZTISt9exception -Wl,-unexported_symbol -Wl,__ZTSSt9bad_alloc -Wl,-unexported_symbol -Wl,__ZTSSt9exception -Wl,-unexported_symbol -Wl,__ZdlPvS_ -Wl,-unexported_symbol -Wl,__ZnwmPv -Wl,-unexported_symbol -Wl,__Znwm -Wl,-unexported_symbol, -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEC2EOS4_ -Wl,-unexported_symbol, -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEC1EOS4_ -Wl,-unexported_symbol, -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEaSEDn -Wl,-unexported_symbol, -Wl,__ZNKSt3__18functionIFvN7WebCore12PolicyActionEEEclES2_ -Wl,-unexported_symbol, -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEE4swapERS4_ -Wl,-unexported_symbol, -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEC1ERKS4_ -Wl,-unexported_symbol, -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEC2ERKS4_ -Wl,-unexported_symbol, -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEED1Ev -Wl,-unexported_symbol, -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEED2Ev -Wl,-unexported_symbol, -Wl,__ZNSt3__18functionIFvN7WebCore12PolicyActionEEEaSERKS4_ -Wl,-unexported_symbol, -Wl,__ZTVNSt3__117bad_function_callE;
>diff --git a/Source/WebKit/NetworkProcess/NetworkActivityTracker.cpp b/Source/WebKit/NetworkProcess/NetworkActivityTracker.cpp
>new file mode 100644
>index 0000000000000000000000000000000000000000..36fbe9d050a33298d0f9b9de8f4aab1f44e7d3f9
>--- /dev/null
>+++ b/Source/WebKit/NetworkProcess/NetworkActivityTracker.cpp
>@@ -0,0 +1,55 @@
>+/*
>+ * Copyright (C) 22018 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#include "config.h"
>+#include "NetworkActivityTracker.h"
>+
>+#if !HAVE(NW_ACTIVITY)
>+
>+namespace WebKit {
>+
>+NetworkActivityTracker::NetworkActivityTracker(Label, Domain)
>+{
>+}
>+
>+NetworkActivityTracker::~NetworkActivityTracker()
>+{
>+}
>+
>+void NetworkActivityTracker::setParent(NetworkActivityTracker&)
>+{
>+}
>+
>+void NetworkActivityTracker::start()
>+{
>+}
>+
>+void NetworkActivityTracker::complete(CompletionCode)
>+{
>+}
>+
>+} // namespace WebKit
>+
>+#endif // USE(NETWORK_ACTIVITY) && !HAVE(NW_ACTIVITY)
>diff --git a/Source/WebKit/NetworkProcess/NetworkActivityTracker.h b/Source/WebKit/NetworkProcess/NetworkActivityTracker.h
>new file mode 100644
>index 0000000000000000000000000000000000000000..ab0065c81927af405c2d85f7c1893f4a10d80f6e
>--- /dev/null
>+++ b/Source/WebKit/NetworkProcess/NetworkActivityTracker.h
>@@ -0,0 +1,85 @@
>+/*
>+ * Copyright (C) 2018 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#pragma once
>+
>+#include <wtf/Platform.h>
>+
>+#if HAVE(NW_ACTIVITY)
>+#include <nw/private.h>
>+#include <wtf/RetainPtr.h>
>+#endif
>+
>+namespace WebKit {
>+
>+class NetworkActivityTracker {
>+public:
>+    enum class Domain {
>+        // These are defined to match analogous values used in the Darwin implementation.
>+        // If they are renumbered, platform-specific code will need to be added to map
>+        // them to the Darwin-specific values.
>+
>+        Invalid = 0,
>+        WebKit = 16,
>+    };
>+
>+    enum class Label {
>+        // These are ours to define, but once defined, they shouldn't change. They can
>+        // be obsolesced and replaced with other codes, but previously-defined codes
>+        // should not be renumbered. Previously assigned values should not be re-used.
>+
>+        Invalid = 0,
>+        LoadPage = 1,
>+        LoadResource = 2,
>+    };
>+
>+    enum class CompletionCode {
>+        Undefined,
>+        None,
>+        Success,
>+        Failure,
>+    };
>+
>+    NetworkActivityTracker(Label, Domain = Domain::WebKit);
>+    ~NetworkActivityTracker();
>+
>+    void setParent(NetworkActivityTracker&);
>+    void start();
>+    void complete(CompletionCode);
>+
>+#if HAVE(NW_ACTIVITY)
>+    nw_activity_t get() { return m_networkActivity.get(); }
>+#endif
>+
>+private:
>+#if HAVE(NW_ACTIVITY)
>+    Domain m_domain;
>+    Label m_label;
>+    bool m_isCompleted { false };
>+    RetainPtr<nw_activity_t> m_networkActivity;
>+#endif
>+};
>+
>+} // namespace WebKit
>diff --git a/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.cpp b/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.cpp
>index 179c24f1dd33a913d2167876f102f681c5893ff0..69fdeb63554629fd606315da804d3e371ba14b35 100644
>--- a/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.cpp
>+++ b/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.cpp
>@@ -29,6 +29,7 @@
> #include "BlobDataFileReferenceWithSandboxExtension.h"
> #include "CacheStorageEngineConnectionMessages.h"
> #include "DataReference.h"
>+#include "Logging.h"
> #include "NetworkBlobRegistry.h"
> #include "NetworkCache.h"
> #include "NetworkConnectionToWebProcessMessages.h"
>@@ -61,6 +62,9 @@
> 
> using namespace WebCore;
> 
>+#define RELEASE_LOG_IF_ALLOWED(fmt, ...) RELEASE_LOG_IF(true, Network, "%p - NetworkConnectionToWebProcess::" fmt, this, ##__VA_ARGS__)
>+#define RELEASE_LOG_ERROR_IF_ALLOWED(fmt, ...) RELEASE_LOG_ERROR_IF(true, Network, "%p - NetworkConnectionToWebProcess::" fmt, this, ##__VA_ARGS__)
>+
> namespace WebKit {
> 
> Ref<NetworkConnectionToWebProcess> NetworkConnectionToWebProcess::create(IPC::Connection::Identifier connectionIdentifier)
>@@ -180,6 +184,11 @@ void NetworkConnectionToWebProcess::didClose(IPC::Connection&)
>         loader->abort();
>     ASSERT(m_networkResourceLoaders.isEmpty());
> 
>+    // All trackers of resources that were in the middle of being loaded were
>+    // stopped with the abort() calls above, but we still need to sweep up the
>+    // root activity trackers.
>+    stopAllNetworkActivityTracking();
>+
>     NetworkBlobRegistry::singleton().connectionToWebProcessDidClose(this);
>     NetworkProcess::singleton().removeNetworkConnectionToWebProcess(this);
> 
>@@ -287,6 +296,11 @@ void NetworkConnectionToWebProcess::removeLoadIdentifier(ResourceLoadIdentifier
>     ASSERT(!m_networkResourceLoaders.contains(identifier));
> }
> 
>+void NetworkConnectionToWebProcess::pageLoadCompleted(uint64_t webPageID)
>+{
>+    stopAllNetworkActivityTrackingForPage(webPageID);
>+}
>+
> void NetworkConnectionToWebProcess::setDefersLoading(ResourceLoadIdentifier identifier, bool defers)
> {
>     RefPtr<NetworkResourceLoader> loader = m_networkResourceLoaders.get(identifier);
>@@ -532,4 +546,124 @@ void NetworkConnectionToWebProcess::resetOriginAccessWhitelists()
>     SecurityPolicy::resetOriginAccessWhitelists();
> }
> 
>+static bool networkActivityTrackingEnabled()
>+{
>+#if USE(NETWORK_ACTIVITY)
>+    return NetworkProcess::singleton().trackNetworkActivity();
>+#else
>+    return false;
>+#endif
>+}
>+
>+std::optional<NetworkActivityTracker> NetworkConnectionToWebProcess::startTrackingResourceLoad(uint64_t pageID, ResourceLoadIdentifier resourceID, bool isMainResource)
>+{
>+    if (!networkActivityTrackingEnabled())
>+        return std::nullopt;
>+
>+    // Either get the existing root activity tracker for this page or create a
>+    // new one if this is the main resource.
>+
>+    size_t rootActivityIndex;
>+    if (isMainResource) {
>+        // If we're loading a page from the top, make sure any tracking of
>+        // previous activity for this page is stopped.
>+
>+        stopAllNetworkActivityTrackingForPage(pageID);
>+
>+        rootActivityIndex = m_networkActivityTrackers.size();
>+        m_networkActivityTrackers.constructAndAppend(pageID);
>+        m_networkActivityTrackers[rootActivityIndex].m_networkActivity.start();
>+
>+#if HAVE(NW_ACTIVITY)
>+        ASSERT(m_networkActivityTrackers[rootActivityIndex].m_networkActivity.get());
>+#endif
>+    } else {
>+        rootActivityIndex = findRootNetworkActivity(pageID);
>+
>+        // This could happen if the Networking process crashes, taking its
>+        // previous state with it.
>+        if (rootActivityIndex == notFound)
>+            return std::nullopt;
>+
>+#if HAVE(NW_ACTIVITY)
>+        ASSERT(m_networkActivityTrackers[rootActivityIndex].m_networkActivity.get());
>+#endif
>+    }
>+
>+    // Create a tracker for the loading of the new resource, setting the root
>+    // activity tracker as its parent.
>+
>+    size_t newActivityIndex = m_networkActivityTrackers.size();
>+    m_networkActivityTrackers.constructAndAppend(pageID, resourceID);
>+#if HAVE(NW_ACTIVITY)
>+    ASSERT(m_networkActivityTrackers[newActivityIndex].m_networkActivity.get());
>+#endif
>+
>+    auto& newActivityTracker = m_networkActivityTrackers[newActivityIndex];
>+    newActivityTracker.m_networkActivity.setParent(m_networkActivityTrackers[rootActivityIndex].m_networkActivity);
>+    newActivityTracker.m_networkActivity.start();
>+
>+    return newActivityTracker.m_networkActivity;
>+}
>+
>+void NetworkConnectionToWebProcess::stopTrackingResourceLoad(ResourceLoadIdentifier resourceID, NetworkActivityTracker::CompletionCode code)
>+{
>+    if (!networkActivityTrackingEnabled())
>+        return;
>+
>+    auto itemIndex = findNetworkActivityTracker(resourceID);
>+    if (itemIndex == notFound) {
>+        RELEASE_LOG_ERROR(Network, "stopTrackingResourceLoad: Unable to find network activity for resource: %d", static_cast<int>(resourceID));
>+        return;
>+    }
>+
>+    m_networkActivityTrackers[itemIndex].m_networkActivity.complete(code);
>+    m_networkActivityTrackers.remove(itemIndex);
>+}
>+
>+void NetworkConnectionToWebProcess::stopAllNetworkActivityTracking()
>+{
>+    if (!networkActivityTrackingEnabled())
>+        return;
>+
>+    for (size_t itemIndex = 0; itemIndex < m_networkActivityTrackers.size(); ++itemIndex)
>+        m_networkActivityTrackers[itemIndex].m_networkActivity.complete(NetworkActivityTracker::CompletionCode::None);
>+    m_networkActivityTrackers.clear();
>+}
>+
>+void NetworkConnectionToWebProcess::stopAllNetworkActivityTrackingForPage(uint64_t pageID)
>+{
>+    if (!networkActivityTrackingEnabled())
>+        return;
>+
>+    size_t itemIndex = m_networkActivityTrackers.size();
>+    while (itemIndex > 0) {
>+        --itemIndex;
>+        if (m_networkActivityTrackers[itemIndex].m_pageID == pageID) {
>+            m_networkActivityTrackers[itemIndex].m_networkActivity.complete(NetworkActivityTracker::CompletionCode::None);
>+            m_networkActivityTrackers.remove(itemIndex);
>+        }
>+    }
>+}
>+
>+size_t NetworkConnectionToWebProcess::findRootNetworkActivity(uint64_t pageID)
>+{
>+    for (size_t itemIndex = 0; itemIndex < m_networkActivityTrackers.size(); ++itemIndex) {
>+        if (m_networkActivityTrackers[itemIndex].m_isRootActivity && m_networkActivityTrackers[itemIndex].m_pageID == pageID)
>+            return itemIndex;
>+    }
>+
>+    return notFound;
>+}
>+
>+size_t NetworkConnectionToWebProcess::findNetworkActivityTracker(ResourceLoadIdentifier resourceID)
>+{
>+    for (size_t itemIndex = 0; itemIndex < m_networkActivityTrackers.size(); ++itemIndex) {
>+        if (m_networkActivityTrackers[itemIndex].m_resourceID == resourceID)
>+            return itemIndex;
>+    }
>+
>+    return notFound;
>+}
>+
> } // namespace WebKit
>diff --git a/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.h b/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.h
>index 4cea2c6d4fa988cb3c8e4d4bc46f63b754f02ef1..d07421884126cceb4e09301d0a94ef7a85b64d58 100644
>--- a/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.h
>+++ b/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.h
>@@ -29,6 +29,7 @@
> #include "CacheStorageEngineConnection.h"
> #include "Connection.h"
> #include "DownloadID.h"
>+#include "NetworkActivityTracker.h"
> #include "NetworkConnectionToWebProcessMessages.h"
> #include "NetworkMDNSRegister.h"
> #include "NetworkRTCProvider.h"
>@@ -111,6 +112,9 @@ public:
>         m_networkLoadInformationByID.remove(identifier);
>     }
> 
>+    std::optional<NetworkActivityTracker> startTrackingResourceLoad(uint64_t pageID, ResourceLoadIdentifier resourceID, bool isMainResource);
>+    void stopTrackingResourceLoad(ResourceLoadIdentifier resourceID, NetworkActivityTracker::CompletionCode);
>+
> private:
>     NetworkConnectionToWebProcess(IPC::Connection::Identifier);
> 
>@@ -133,6 +137,7 @@ private:
>     void preconnectTo(uint64_t preconnectionIdentifier, NetworkLoadParameters&&);
> 
>     void removeLoadIdentifier(ResourceLoadIdentifier);
>+    void pageLoadCompleted(uint64_t webPageID);
>     void setDefersLoading(ResourceLoadIdentifier, bool);
>     void crossOriginRedirectReceived(ResourceLoadIdentifier, const WebCore::URL& redirectURL);
>     void startDownload(PAL::SessionID, DownloadID, const WebCore::ResourceRequest&, const String& suggestedName = { });
>@@ -180,11 +185,43 @@ private:
>     void removeOriginAccessWhitelistEntry(const String& sourceOrigin, const String& destinationProtocol, const String& destinationHost, bool allowDestinationSubdomains);
>     void resetOriginAccessWhitelists();
> 
>+    struct ResourceNetworkActivityTracker {
>+        ResourceNetworkActivityTracker() = default;
>+        ResourceNetworkActivityTracker(const ResourceNetworkActivityTracker&) = default;
>+        ResourceNetworkActivityTracker(ResourceNetworkActivityTracker&&) = default;
>+        ResourceNetworkActivityTracker(uint64_t pageID)
>+            : m_pageID(pageID)
>+            , m_resourceID(0)
>+            , m_isRootActivity(true)
>+            , m_networkActivity(NetworkActivityTracker::Label::LoadPage)
>+        {
>+        }
>+
>+        ResourceNetworkActivityTracker(uint64_t pageID, ResourceLoadIdentifier resourceID)
>+            : m_pageID(pageID)
>+            , m_resourceID(resourceID)
>+            , m_isRootActivity(false)
>+            , m_networkActivity(NetworkActivityTracker::Label::LoadResource)
>+        {
>+        }
>+
>+        uint64_t m_pageID;
>+        ResourceLoadIdentifier m_resourceID;
>+        bool m_isRootActivity;
>+        NetworkActivityTracker m_networkActivity;
>+    };
>+
>+    void stopAllNetworkActivityTracking();
>+    void stopAllNetworkActivityTrackingForPage(uint64_t pageID);
>+    size_t findRootNetworkActivity(uint64_t pageID);
>+    size_t findNetworkActivityTracker(ResourceLoadIdentifier resourceID);
>+
>     Ref<IPC::Connection> m_connection;
> 
>     HashMap<uint64_t, RefPtr<NetworkSocketStream>> m_networkSocketStreams;
>     HashMap<ResourceLoadIdentifier, RefPtr<NetworkResourceLoader>> m_networkResourceLoaders;
>     HashMap<String, RefPtr<WebCore::BlobDataFileReference>> m_blobDataFileReferences;
>+    Vector<ResourceNetworkActivityTracker> m_networkActivityTrackers;
> 
>     HashMap<ResourceLoadIdentifier, NetworkLoadInformation> m_networkLoadInformationByID;
> 
>diff --git a/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.messages.in b/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.messages.in
>index 9a5a4f21560da67e8a7f0be61e55b6c7d1716c47..f4ec63311f77a3be67187b896d52a0178baf7154 100644
>--- a/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.messages.in
>+++ b/Source/WebKit/NetworkProcess/NetworkConnectionToWebProcess.messages.in
>@@ -26,6 +26,7 @@ messages -> NetworkConnectionToWebProcess LegacyReceiver {
>     PerformSynchronousLoad(WebKit::NetworkResourceLoadParameters resourceLoadParameters) -> (WebCore::ResourceError error, WebCore::ResourceResponse response, Vector<char> data) Delayed
>     LoadPing(WebKit::NetworkResourceLoadParameters resourceLoadParameters)
>     RemoveLoadIdentifier(uint64_t resourceLoadIdentifier)
>+    PageLoadCompleted(uint64_t webPageID)
>     SetDefersLoading(uint64_t resourceLoadIdentifier, bool defers)
>     PrefetchDNS(String hostname)
>     PreconnectTo(uint64_t preconnectionIdentifier, WebKit::NetworkResourceLoadParameters loadParameters);
>diff --git a/Source/WebKit/NetworkProcess/NetworkDataTask.cpp b/Source/WebKit/NetworkProcess/NetworkDataTask.cpp
>index 55dcb05097b82636e2bf7fab86ce2bb9263486c5..2d354ad9c704923858b78aedc50b50e301d9a53e 100644
>--- a/Source/WebKit/NetworkProcess/NetworkDataTask.cpp
>+++ b/Source/WebKit/NetworkProcess/NetworkDataTask.cpp
>@@ -54,7 +54,7 @@ Ref<NetworkDataTask> NetworkDataTask::create(NetworkSession& session, NetworkDat
>         return NetworkDataTaskBlob::create(session, client, parameters.request, parameters.contentSniffingPolicy, parameters.blobFileReferences);
> 
> #if PLATFORM(COCOA)
>-    return NetworkDataTaskCocoa::create(session, client, parameters.request, parameters.webFrameID, parameters.webPageID, parameters.storedCredentialsPolicy, parameters.contentSniffingPolicy, parameters.contentEncodingSniffingPolicy, parameters.shouldClearReferrerOnHTTPSToHTTPRedirect, parameters.shouldPreconnectOnly);
>+    return NetworkDataTaskCocoa::create(session, client, parameters.request, parameters.webFrameID, parameters.webPageID, parameters.storedCredentialsPolicy, parameters.contentSniffingPolicy, parameters.contentEncodingSniffingPolicy, parameters.shouldClearReferrerOnHTTPSToHTTPRedirect, parameters.shouldPreconnectOnly, parameters.networkActivityTracker);
> #endif
> #if USE(SOUP)
>     return NetworkDataTaskSoup::create(session, client, parameters.request, parameters.storedCredentialsPolicy, parameters.contentSniffingPolicy, parameters.contentEncodingSniffingPolicy, parameters.shouldClearReferrerOnHTTPSToHTTPRedirect);
>diff --git a/Source/WebKit/NetworkProcess/NetworkLoadParameters.h b/Source/WebKit/NetworkProcess/NetworkLoadParameters.h
>index 53c47f8d623a7402b2090235dddbb7377fa8f6a9..fd0a6a99d6ea0f4558d0bd62878e9c4a48cfbe55 100644
>--- a/Source/WebKit/NetworkProcess/NetworkLoadParameters.h
>+++ b/Source/WebKit/NetworkProcess/NetworkLoadParameters.h
>@@ -25,6 +25,7 @@
> 
> #pragma once
> 
>+#include "NetworkActivityTracker.h"
> #include <WebCore/BlobDataFileReference.h>
> #include <WebCore/ResourceLoaderOptions.h>
> #include <WebCore/ResourceRequest.h>
>@@ -50,6 +51,7 @@ public:
>     bool needsCertificateInfo { false };
>     Vector<RefPtr<WebCore::BlobDataFileReference>> blobFileReferences;
>     PreconnectOnly shouldPreconnectOnly { PreconnectOnly::No };
>+    std::optional<NetworkActivityTracker> networkActivityTracker;
> };
> 
> } // namespace WebKit
>diff --git a/Source/WebKit/NetworkProcess/NetworkProcess.cpp b/Source/WebKit/NetworkProcess/NetworkProcess.cpp
>index 3b0ff20185115445ba81e870b4295057d536db90..077bd73b043c80c1146c341be49135a595c828cb 100644
>--- a/Source/WebKit/NetworkProcess/NetworkProcess.cpp
>+++ b/Source/WebKit/NetworkProcess/NetworkProcess.cpp
>@@ -298,6 +298,8 @@ void NetworkProcess::initializeNetworkProcess(NetworkProcessCreationParameters&&
>     for (auto& scheme : parameters.urlSchemesRegisteredAsCanDisplayOnlyIfCanRequest)
>         registerURLSchemeAsCanDisplayOnlyIfCanRequest(scheme);
> 
>+    m_trackNetworkActivity = parameters.trackNetworkActivity;
>+
>     RELEASE_LOG(Process, "%p - NetworkProcess::initializeNetworkProcess: Presenting process = %d", this, WebCore::presentingApplicationPID());
> }
> 
>diff --git a/Source/WebKit/NetworkProcess/NetworkProcess.h b/Source/WebKit/NetworkProcess/NetworkProcess.h
>index ce412b459286b369df12cd08f33385ad8c9ddde9..b961abcb009fd212be159666b3a140a44280f31a 100644
>--- a/Source/WebKit/NetworkProcess/NetworkProcess.h
>+++ b/Source/WebKit/NetworkProcess/NetworkProcess.h
>@@ -162,6 +162,8 @@ public:
>     NetworkContentRuleListManager& networkContentRuleListManager() { return m_NetworkContentRuleListManager; }
> #endif
> 
>+    bool trackNetworkActivity() const { return m_trackNetworkActivity; }
>+
> private:
>     NetworkProcess();
>     ~NetworkProcess();
>@@ -300,6 +302,8 @@ private:
> #if ENABLE(CONTENT_EXTENSIONS)
>     NetworkContentRuleListManager m_NetworkContentRuleListManager;
> #endif
>+
>+    bool m_trackNetworkActivity { false };
> };
> 
> } // namespace WebKit
>diff --git a/Source/WebKit/NetworkProcess/NetworkProcessCreationParameters.cpp b/Source/WebKit/NetworkProcess/NetworkProcessCreationParameters.cpp
>index a84e498cffc495a09ef6d9fe980eae1c6c719f7c..3d24d23a4f5323e287022a1784dc3eecf1828341 100644
>--- a/Source/WebKit/NetworkProcess/NetworkProcessCreationParameters.cpp
>+++ b/Source/WebKit/NetworkProcess/NetworkProcessCreationParameters.cpp
>@@ -115,6 +115,8 @@ void NetworkProcessCreationParameters::encode(IPC::Encoder& encoder) const
>     encoder << urlSchemesRegisteredAsDisplayIsolated;
>     encoder << urlSchemesRegisteredAsCORSEnabled;
>     encoder << urlSchemesRegisteredAsCanDisplayOnlyIfCanRequest;
>+
>+    encoder << trackNetworkActivity;
> }
> 
> bool NetworkProcessCreationParameters::decode(IPC::Decoder& decoder, NetworkProcessCreationParameters& result)
>@@ -275,6 +277,9 @@ bool NetworkProcessCreationParameters::decode(IPC::Decoder& decoder, NetworkProc
>     if (!decoder.decode(result.urlSchemesRegisteredAsCanDisplayOnlyIfCanRequest))
>         return false;
> 
>+    if (!decoder.decode(result.trackNetworkActivity))
>+        return false;
>+
>     return true;
> }
> 
>diff --git a/Source/WebKit/NetworkProcess/NetworkProcessCreationParameters.h b/Source/WebKit/NetworkProcess/NetworkProcessCreationParameters.h
>index c2b680b025304c57f7f404bcc2a19dac3b857114..d147533ba21ea987a7e989da018cee7d9977a518 100644
>--- a/Source/WebKit/NetworkProcess/NetworkProcessCreationParameters.h
>+++ b/Source/WebKit/NetworkProcess/NetworkProcessCreationParameters.h
>@@ -132,6 +132,8 @@ struct NetworkProcessCreationParameters {
>     Vector<String> urlSchemesRegisteredAsDisplayIsolated;
>     Vector<String> urlSchemesRegisteredAsCanDisplayOnlyIfCanRequest;
>     Vector<String> urlSchemesRegisteredAsCORSEnabled;
>+
>+    bool trackNetworkActivity { false };
> };
> 
> } // namespace WebKit
>diff --git a/Source/WebKit/NetworkProcess/NetworkResourceLoader.cpp b/Source/WebKit/NetworkProcess/NetworkResourceLoader.cpp
>index c23eca442a81591200d12e377baa42b3a67246e0..aa73f4484f258b1049e40e983606825365cf3a90 100644
>--- a/Source/WebKit/NetworkProcess/NetworkResourceLoader.cpp
>+++ b/Source/WebKit/NetworkProcess/NetworkResourceLoader.cpp
>@@ -184,6 +184,8 @@ void NetworkResourceLoader::start()
> {
>     ASSERT(RunLoop::isMain());
> 
>+    m_parameters.networkActivityTracker = m_connection->startTrackingResourceLoad(m_parameters.webPageID, m_parameters.identifier, isMainResource());
>+
>     if (m_defersLoading) {
>         RELEASE_LOG_IF_ALLOWED("start: Loading is deferred (pageID = %" PRIu64 ", frameID = %" PRIu64 ", resourceID = %" PRIu64 ", isMainResource = %d, isSynchronous = %d)", m_parameters.webPageID, m_parameters.webFrameID, m_parameters.identifier, isMainResource(), isSynchronous());
>         return;
>@@ -323,10 +325,15 @@ void NetworkResourceLoader::setDefersLoading(bool defers)
>         RELEASE_LOG_IF_ALLOWED("setDefersLoading: defers = %d, but nothing to do (pageID = %" PRIu64 ", frameID = %" PRIu64 ", resourceID = %" PRIu64 ")", m_defersLoading, m_parameters.webPageID, m_parameters.webFrameID, m_parameters.identifier);
> }
> 
>-void NetworkResourceLoader::cleanup()
>+void NetworkResourceLoader::cleanup(LoadResult result)
> {
>     ASSERT(RunLoop::isMain());
> 
>+    m_connection->stopTrackingResourceLoad(m_parameters.identifier,
>+        result == LoadResult::Success ? NetworkActivityTracker::CompletionCode::Success :
>+        result == LoadResult::Failure ? NetworkActivityTracker::CompletionCode::Failure :
>+        NetworkActivityTracker::CompletionCode::None);
>+
>     m_bufferingTimer.stop();
> 
>     invalidateSandboxExtensions();
>@@ -359,7 +366,7 @@ void NetworkResourceLoader::abort()
>         m_networkLoad->cancel();
>     }
> 
>-    cleanup();
>+    cleanup(LoadResult::Cancel);
> }
> 
> static bool areFrameAncestorsSameSite(const ResourceResponse& response, const Vector<RefPtr<SecurityOrigin>>& frameAncestorOrigins)
>@@ -531,7 +538,7 @@ void NetworkResourceLoader::didFinishLoading(const NetworkLoadMetrics& networkLo
> 
>     tryStoreAsCacheEntry();
> 
>-    cleanup();
>+    cleanup(LoadResult::Success);
> }
> 
> void NetworkResourceLoader::didFailLoading(const ResourceError& error)
>@@ -551,7 +558,7 @@ void NetworkResourceLoader::didFailLoading(const ResourceError& error)
>     } else if (auto* connection = messageSenderConnection())
>         connection->send(Messages::WebResourceLoader::DidFailResourceLoad(error), messageSenderDestinationID());
> 
>-    cleanup();
>+    cleanup(LoadResult::Failure);
> }
> 
> void NetworkResourceLoader::didBlockAuthenticationChallenge()
>@@ -746,7 +753,7 @@ void NetworkResourceLoader::didRetrieveCacheEntry(std::unique_ptr<NetworkCache::
>     if (isSynchronous()) {
>         m_synchronousLoadData->response = WTFMove(response);
>         sendReplyToSynchronousRequest(*m_synchronousLoadData, entry->buffer());
>-        cleanup();
>+        cleanup(LoadResult::Success);
>         return;
>     }
> 
>@@ -780,7 +787,7 @@ void NetworkResourceLoader::continueProcessingCachedEntryAfterDidReceiveResponse
>                 }
>                 if (retrievedAll) {
>                     loader->sendResultForCacheEntry(WTFMove(entry));
>-                    loader->cleanup();
>+                    loader->cleanup(LoadResult::Success);
>                 }
>             });
>         }
>@@ -789,7 +796,7 @@ void NetworkResourceLoader::continueProcessingCachedEntryAfterDidReceiveResponse
> 
>     sendResultForCacheEntry(WTFMove(entry));
> 
>-    cleanup();
>+    cleanup(LoadResult::Success);
> }
> 
> void NetworkResourceLoader::sendResultForCacheEntry(std::unique_ptr<NetworkCache::Entry> entry)
>diff --git a/Source/WebKit/NetworkProcess/NetworkResourceLoader.h b/Source/WebKit/NetworkProcess/NetworkResourceLoader.h
>index 8769708c0a200dd261bf16ff92669e8a2364548a..009ff9b002e06575a05561412a4cfbbf31a119bb 100644
>--- a/Source/WebKit/NetworkProcess/NetworkResourceLoader.h
>+++ b/Source/WebKit/NetworkProcess/NetworkResourceLoader.h
>@@ -134,7 +134,13 @@ private:
>     void startNetworkLoad(WebCore::ResourceRequest&&, FirstLoad);
>     void continueDidReceiveResponse();
> 
>-    void cleanup();
>+    enum class LoadResult {
>+        Unknown,
>+        Success,
>+        Failure,
>+        Cancel
>+    };
>+    void cleanup(LoadResult);
>     
>     void platformDidReceiveResponse(const WebCore::ResourceResponse&);
> 
>@@ -153,7 +159,7 @@ private:
> 
>     WebCore::ResourceResponse sanitizeResponseIfPossible(WebCore::ResourceResponse&&, WebCore::ResourceResponse::SanitizationType);
> 
>-    const NetworkResourceLoadParameters m_parameters;
>+    NetworkResourceLoadParameters m_parameters;
> 
>     Ref<NetworkConnectionToWebProcess> m_connection;
> 
>diff --git a/Source/WebKit/NetworkProcess/cocoa/NetworkActivityTrackerCocoa.mm b/Source/WebKit/NetworkProcess/cocoa/NetworkActivityTrackerCocoa.mm
>new file mode 100644
>index 0000000000000000000000000000000000000000..345836d5e1511e43187444bc421700b505613a76
>--- /dev/null
>+++ b/Source/WebKit/NetworkProcess/cocoa/NetworkActivityTrackerCocoa.mm
>@@ -0,0 +1,76 @@
>+/*
>+ * Copyright (C) 22018 Apple Inc. All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
>+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
>+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
>+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
>+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
>+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
>+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
>+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
>+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
>+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
>+ * THE POSSIBILITY OF SUCH DAMAGE.
>+ */
>+
>+#include "config.h"
>+#include "NetworkActivityTracker.h"
>+
>+#if HAVE(NW_ACTIVITY)
>+
>+namespace WebKit {
>+
>+NetworkActivityTracker::NetworkActivityTracker(Label label, Domain domain)
>+    : m_domain(domain)
>+    , m_label(label)
>+    , m_networkActivity(adoptNS(nw_activity_create(static_cast<uint32_t>(m_domain), static_cast<uint32_t>(m_label))))
>+{
>+}
>+
>+NetworkActivityTracker::~NetworkActivityTracker()
>+{
>+}
>+
>+void NetworkActivityTracker::setParent(NetworkActivityTracker& parent)
>+{
>+    ASSERT(m_networkActivity.get());
>+    ASSERT(parent.m_networkActivity.get());
>+    nw_activity_set_parent_activity(m_networkActivity.get(), parent.m_networkActivity.get());
>+}
>+
>+void NetworkActivityTracker::start()
>+{
>+    ASSERT(m_networkActivity.get());
>+    nw_activity_activate(m_networkActivity.get());
>+}
>+
>+void NetworkActivityTracker::complete(CompletionCode code)
>+{
>+    if (m_isCompleted)
>+        return;
>+
>+    m_isCompleted = true;
>+
>+    ASSERT(m_networkActivity.get());
>+    auto reason =
>+        code == CompletionCode::None ? nw_activity_completion_reason_none :
>+        code == CompletionCode::Success ? nw_activity_completion_reason_success :
>+        code == CompletionCode::Failure ? nw_activity_completion_reason_failure :
>+        nw_activity_completion_reason_invalid;
>+    nw_activity_complete_with_reason(m_networkActivity.get(), reason);
>+    m_networkActivity.clear();
>+}
>+
>+} // namespace WebKit
>+
>+#endif // HAVE(NW_ACTIVITY)
>diff --git a/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.h b/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.h
>index c35c3af5f75192e296ed23230e760522cddd6432..a5b7cff93ad94ced5224537aa88cdb3d4b121701 100644
>--- a/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.h
>+++ b/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.h
>@@ -25,6 +25,7 @@
> 
> #pragma once
> 
>+#include "NetworkActivityTracker.h"
> #include "NetworkDataTask.h"
> #include "NetworkLoadParameters.h"
> #include "WiFiAssertionHolder.h"
>@@ -41,9 +42,9 @@ class NetworkSessionCocoa;
> class NetworkDataTaskCocoa final : public NetworkDataTask {
>     friend class NetworkSessionCocoa;
> public:
>-    static Ref<NetworkDataTask> create(NetworkSession& session, NetworkDataTaskClient& client, const WebCore::ResourceRequest& request, uint64_t frameID, uint64_t pageID, WebCore::StoredCredentialsPolicy storedCredentialsPolicy, WebCore::ContentSniffingPolicy shouldContentSniff, WebCore::ContentEncodingSniffingPolicy shouldContentEncodingSniff, bool shouldClearReferrerOnHTTPSToHTTPRedirect, PreconnectOnly shouldPreconnectOnly)
>+    static Ref<NetworkDataTask> create(NetworkSession& session, NetworkDataTaskClient& client, const WebCore::ResourceRequest& request, uint64_t frameID, uint64_t pageID, WebCore::StoredCredentialsPolicy storedCredentialsPolicy, WebCore::ContentSniffingPolicy shouldContentSniff, WebCore::ContentEncodingSniffingPolicy shouldContentEncodingSniff, bool shouldClearReferrerOnHTTPSToHTTPRedirect, PreconnectOnly shouldPreconnectOnly, std::optional<NetworkActivityTracker> networkActivityTracker)
>     {
>-        return adoptRef(*new NetworkDataTaskCocoa(session, client, request, frameID, pageID, storedCredentialsPolicy, shouldContentSniff, shouldContentEncodingSniff, shouldClearReferrerOnHTTPSToHTTPRedirect, shouldPreconnectOnly));
>+        return adoptRef(*new NetworkDataTaskCocoa(session, client, request, frameID, pageID, storedCredentialsPolicy, shouldContentSniff, shouldContentEncodingSniff, shouldClearReferrerOnHTTPSToHTTPRedirect, shouldPreconnectOnly, networkActivityTracker));
>     }
> 
>     ~NetworkDataTaskCocoa();
>@@ -81,7 +82,7 @@ public:
> #endif
> 
> private:
>-    NetworkDataTaskCocoa(NetworkSession&, NetworkDataTaskClient&, const WebCore::ResourceRequest&, uint64_t frameID, uint64_t pageID, WebCore::StoredCredentialsPolicy, WebCore::ContentSniffingPolicy, WebCore::ContentEncodingSniffingPolicy, bool shouldClearReferrerOnHTTPSToHTTPRedirect, PreconnectOnly);
>+    NetworkDataTaskCocoa(NetworkSession&, NetworkDataTaskClient&, const WebCore::ResourceRequest&, uint64_t frameID, uint64_t pageID, WebCore::StoredCredentialsPolicy, WebCore::ContentSniffingPolicy, WebCore::ContentEncodingSniffingPolicy, bool shouldClearReferrerOnHTTPSToHTTPRedirect, PreconnectOnly, std::optional<NetworkActivityTracker>);
> 
>     bool tryPasswordBasedAuthentication(const WebCore::AuthenticationChallenge&, ChallengeCompletionHandler&);
>     void applySniffingPoliciesAndBindRequestToInferfaceIfNeeded(NSURLRequest*&, bool shouldContentSniff, bool shouldContentEncodingSniff);
>diff --git a/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.mm b/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.mm
>index 4b941a5be23bb1aa06f8e9981ce138226df64241..8cbf48db35f876694cd7cedc40894e9ca00aa7d5 100644
>--- a/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.mm
>+++ b/Source/WebKit/NetworkProcess/cocoa/NetworkDataTaskCocoa.mm
>@@ -55,6 +55,10 @@ @property (readwrite) BOOL _isTopLevelNavigation;
> @end
> #endif
> 
>+#if HAVE(NW_ACTIVITY)
>+#import <CFNetwork/CFNSURLConnection.h>
>+#endif
>+
> namespace WebKit {
> 
> #if USE(CREDENTIAL_STORAGE_WITH_NETWORK_SESSION)
>@@ -175,7 +179,7 @@ static void updateTaskWithFirstPartyForSameSiteCookies(NSURLSessionDataTask* tas
> #endif
> }
> 
>-NetworkDataTaskCocoa::NetworkDataTaskCocoa(NetworkSession& session, NetworkDataTaskClient& client, const WebCore::ResourceRequest& requestWithCredentials, uint64_t frameID, uint64_t pageID, WebCore::StoredCredentialsPolicy storedCredentialsPolicy, WebCore::ContentSniffingPolicy shouldContentSniff, WebCore::ContentEncodingSniffingPolicy shouldContentEncodingSniff, bool shouldClearReferrerOnHTTPSToHTTPRedirect, PreconnectOnly shouldPreconnectOnly)
>+NetworkDataTaskCocoa::NetworkDataTaskCocoa(NetworkSession& session, NetworkDataTaskClient& client, const WebCore::ResourceRequest& requestWithCredentials, uint64_t frameID, uint64_t pageID, WebCore::StoredCredentialsPolicy storedCredentialsPolicy, WebCore::ContentSniffingPolicy shouldContentSniff, WebCore::ContentEncodingSniffingPolicy shouldContentEncodingSniff, bool shouldClearReferrerOnHTTPSToHTTPRedirect, PreconnectOnly shouldPreconnectOnly, std::optional<NetworkActivityTracker> networkActivityTracker)
>     : NetworkDataTask(session, client, requestWithCredentials, storedCredentialsPolicy, shouldClearReferrerOnHTTPSToHTTPRedirect)
>     , m_frameID(frameID)
>     , m_pageID(pageID)
>@@ -267,6 +271,11 @@ NetworkDataTaskCocoa::NetworkDataTaskCocoa(NetworkSession& session, NetworkDataT
>         m_task.get().priority = toNSURLSessionTaskPriority(request.priority());
> 
>     updateTaskWithFirstPartyForSameSiteCookies(m_task.get(), request);
>+
>+#if HAVE(NW_ACTIVITY)
>+    if (networkActivityTracker)
>+        m_task.get()._nw_activity = networkActivityTracker.value().get();
>+#endif
> }
> 
> NetworkDataTaskCocoa::~NetworkDataTaskCocoa()
>diff --git a/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.cpp b/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.cpp
>index bacffa7ad1626607e232e8dd9f92dfaeabed65e0..6d88a0f7338269b423e97fc32928e9c45919393d 100644
>--- a/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.cpp
>+++ b/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.cpp
>@@ -129,6 +129,7 @@ Ref<ProcessPoolConfiguration> ProcessPoolConfiguration::copy()
>     copy->m_presentingApplicationPID = this->m_presentingApplicationPID;
>     copy->m_processSwapsOnNavigation = this->m_processSwapsOnNavigation;
>     copy->m_processSwapsOnWindowOpenWithOpener = this->m_processSwapsOnWindowOpenWithOpener;
>+    copy->m_trackNetworkActivity = this->m_trackNetworkActivity;
> 
>     return copy;
> }
>diff --git a/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.h b/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.h
>index 3dc2b182bfb099ae0f6a3b779dfe038351e699ce..91105d3f14e66ea75fc2a4cb2c25e0996ba9218e 100644
>--- a/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.h
>+++ b/Source/WebKit/UIProcess/API/APIProcessPoolConfiguration.h
>@@ -141,6 +141,9 @@ public:
>     bool processSwapsOnWindowOpenWithOpener() const { return m_processSwapsOnWindowOpenWithOpener; }
>     void setProcessSwapsOnWindowOpenWithOpener(bool swaps) { m_processSwapsOnWindowOpenWithOpener = swaps; }
> 
>+    bool trackNetworkActivity() const { return m_trackNetworkActivity; }
>+    void setTrackNetworkActivity(bool track) { m_trackNetworkActivity = track; }
>+
> private:
>     bool m_shouldHaveLegacyDataStore { false };
> 
>@@ -174,6 +177,7 @@ private:
>     ProcessID m_presentingApplicationPID { getCurrentProcessID() };
>     bool m_processSwapsOnNavigation { false };
>     bool m_processSwapsOnWindowOpenWithOpener { false };
>+    bool m_trackNetworkActivity { false };
> 
> #if PLATFORM(IOS)
>     WTF::String m_ctDataConnectionServiceType;
>diff --git a/Source/WebKit/UIProcess/API/C/WKContextConfigurationRef.cpp b/Source/WebKit/UIProcess/API/C/WKContextConfigurationRef.cpp
>index f7896ce515ec6e3ed4a3db865ff326a4968ec11e..2cacc05c42112ef863e8fcb69a8f08abfe915760 100644
>--- a/Source/WebKit/UIProcess/API/C/WKContextConfigurationRef.cpp
>+++ b/Source/WebKit/UIProcess/API/C/WKContextConfigurationRef.cpp
>@@ -177,3 +177,13 @@ void WKContextConfigurationSetProcessSwapsOnWindowOpenWithOpener(WKContextConfig
> {
>     toImpl(configuration)->setProcessSwapsOnWindowOpenWithOpener(swaps);
> }
>+
>+bool WKContextConfigurationTrackNetworkActivity(WKContextConfigurationRef configuration)
>+{
>+    return toImpl(configuration)->trackNetworkActivity();
>+}
>+
>+void WKContextConfigurationSetTrackNetworkActivity(WKContextConfigurationRef configuration, bool track)
>+{
>+    toImpl(configuration)->setTrackNetworkActivity(track);
>+}
>diff --git a/Source/WebKit/UIProcess/API/C/WKContextConfigurationRef.h b/Source/WebKit/UIProcess/API/C/WKContextConfigurationRef.h
>index 77ae17137e5720fca15485a5c0e5d43cc54a86d1..f512c55dd864e47e796f8b8c3d3762920500022b 100644
>--- a/Source/WebKit/UIProcess/API/C/WKContextConfigurationRef.h
>+++ b/Source/WebKit/UIProcess/API/C/WKContextConfigurationRef.h
>@@ -74,6 +74,9 @@ WK_EXPORT void WKContextConfigurationSetProcessSwapsOnNavigation(WKContextConfig
> WK_EXPORT bool WKContextConfigurationProcessSwapsOnWindowOpenWithOpener(WKContextConfigurationRef configuration);
> WK_EXPORT void WKContextConfigurationSetProcessSwapsOnWindowOpenWithOpener(WKContextConfigurationRef configuration, bool swaps);
> 
>+WK_EXPORT bool WKContextConfigurationTrackNetworkActivity(WKContextConfigurationRef configuration);
>+WK_EXPORT void WKContextConfigurationSetTrackNetworkActivity(WKContextConfigurationRef configuration, bool track);
>+
> #ifdef __cplusplus
> }
> #endif
>diff --git a/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.h b/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.h
>index 2a13728bb9c2e5058bd07a9db0cd6769ceff03a8..3075cf1f9d8b1974ada5cc210681761608378a15 100644
>--- a/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.h
>+++ b/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.h
>@@ -59,6 +59,7 @@ WK_CLASS_AVAILABLE(macosx(10.10), ios(8.0))
> @property (nonatomic) pid_t presentingApplicationPID WK_API_AVAILABLE(macosx(10.13), ios(11.0));
> @property (nonatomic) BOOL processSwapsOnNavigation WK_API_AVAILABLE(macosx(WK_MAC_TBA), ios(WK_IOS_TBA));
> @property (nonatomic) BOOL processSwapsOnWindowOpenWithOpener WK_API_AVAILABLE(macosx(WK_MAC_TBA), ios(WK_IOS_TBA));
>+@property (nonatomic) BOOL trackNetworkActivity WK_API_AVAILABLE(macosx(WK_MAC_TBA), ios(WK_IOS_TBA));
> 
> @end
> 
>diff --git a/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.mm b/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.mm
>index cd29da86302d95435dcaf2dcdcc2764e5959ad17..1e3bd797aeb4e793c992d45cc93ea3dd115adf2c 100644
>--- a/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.mm
>+++ b/Source/WebKit/UIProcess/API/Cocoa/_WKProcessPoolConfiguration.mm
>@@ -247,6 +247,16 @@ - (BOOL)processSwapsOnWindowOpenWithOpener
>     return _processPoolConfiguration->processSwapsOnWindowOpenWithOpener();
> }
> 
>+- (BOOL)trackNetworkActivity
>+{
>+    return _processPoolConfiguration->trackNetworkActivity();
>+}
>+
>+- (void)setTrackNetworkActivity:(BOOL)track
>+{
>+    _processPoolConfiguration->setTrackNetworkActivity(track);
>+}
>+
> #if PLATFORM(IOS)
> - (NSString *)CTDataConnectionServiceType
> {
>diff --git a/Source/WebKit/UIProcess/WebProcessPool.cpp b/Source/WebKit/UIProcess/WebProcessPool.cpp
>index 2ba440a93212798be0951a4e03dc73c89b29ba6f..3fe86c11a6c8e901b84617fd2b1a916184abe31c 100644
>--- a/Source/WebKit/UIProcess/WebProcessPool.cpp
>+++ b/Source/WebKit/UIProcess/WebProcessPool.cpp
>@@ -494,6 +494,8 @@ NetworkProcessProxy& WebProcessPool::ensureNetworkProcess(WebsiteDataStore* with
>     parameters.urlSchemesRegisteredAsCORSEnabled = copyToVector(m_schemesToRegisterAsCORSEnabled);
>     parameters.urlSchemesRegisteredAsCanDisplayOnlyIfCanRequest = copyToVector(m_schemesToRegisterAsCanDisplayOnlyIfCanRequest);
> 
>+    parameters.trackNetworkActivity = m_configuration->trackNetworkActivity();
>+
>     // Add any platform specific parameters
>     platformInitializeNetworkProcess(parameters);
> 
>diff --git a/Source/WebKit/WebKit.xcodeproj/project.pbxproj b/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>index 882bb8aadb2dc01184c4c3fb77fb7f36e5ff9ab4..2d64afbc2e6d1430c8a830223fb1aff0191305d7 100644
>--- a/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>+++ b/Source/WebKit/WebKit.xcodeproj/project.pbxproj
>@@ -1211,10 +1211,13 @@
> 		530258451DCBBD2200DA89C2 /* NetworkCaptureReplayer.h in Headers */ = {isa = PBXBuildFile; fileRef = 530258381DCBBD1D00DA89C2 /* NetworkCaptureReplayer.h */; };
> 		530258461DCBBD2200DA89C2 /* NetworkDataTaskReplay.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 530258391DCBBD1D00DA89C2 /* NetworkDataTaskReplay.cpp */; };
> 		530258471DCBBD2200DA89C2 /* NetworkDataTaskReplay.h in Headers */ = {isa = PBXBuildFile; fileRef = 5302583A1DCBBD1D00DA89C2 /* NetworkDataTaskReplay.h */; };
>+		5315876C2076B762004BF9F3 /* NetworkActivityTrackerCocoa.mm in Sources */ = {isa = PBXBuildFile; fileRef = 5315876B2076B713004BF9F3 /* NetworkActivityTrackerCocoa.mm */; };
> 		532159531DBAE7180054AA3C /* NetworkSession.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 532159521DBAE6FC0054AA3C /* NetworkSession.cpp */; };
> 		532159541DBAE71D0054AA3C /* NetworkDataTask.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 532159511DBAE6FC0054AA3C /* NetworkDataTask.cpp */; };
> 		532159551DBAE7290054AA3C /* NetworkSessionCocoa.h in Headers */ = {isa = PBXBuildFile; fileRef = 532159501DBAE6D70054AA3C /* NetworkSessionCocoa.h */; };
> 		532159561DBAE72D0054AA3C /* NetworkDataTaskCocoa.h in Headers */ = {isa = PBXBuildFile; fileRef = 5321594F1DBAE6D70054AA3C /* NetworkDataTaskCocoa.h */; };
>+		535BCB922069C49C00CCCE02 /* NetworkActivityTracker.h in Headers */ = {isa = PBXBuildFile; fileRef = 535BCB902069C49C00CCCE02 /* NetworkActivityTracker.h */; };
>+		5379DB72207E9470007D8C33 /* NetworkActivityTracker.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 53F3CAA5206C443E0086490E /* NetworkActivityTracker.cpp */; };
> 		53BA47D01DC2EF5E004DF4AD /* NetworkDataTaskBlob.cpp in Sources */ = {isa = PBXBuildFile; fileRef = 539EB5461DC2EE40009D48CF /* NetworkDataTaskBlob.cpp */; };
> 		53BA47D11DC2EF5E004DF4AD /* NetworkDataTaskBlob.h in Headers */ = {isa = PBXBuildFile; fileRef = 539EB5471DC2EE40009D48CF /* NetworkDataTaskBlob.h */; };
> 		53DEA3661DDE423100E82648 /* json.hpp in Headers */ = {isa = PBXBuildFile; fileRef = 53DEA3651DDE422E00E82648 /* json.hpp */; };
>@@ -3659,13 +3662,16 @@
> 		530258381DCBBD1D00DA89C2 /* NetworkCaptureReplayer.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = NetworkCaptureReplayer.h; path = NetworkProcess/capture/NetworkCaptureReplayer.h; sourceTree = "<group>"; };
> 		530258391DCBBD1D00DA89C2 /* NetworkDataTaskReplay.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = NetworkDataTaskReplay.cpp; path = NetworkProcess/capture/NetworkDataTaskReplay.cpp; sourceTree = "<group>"; };
> 		5302583A1DCBBD1D00DA89C2 /* NetworkDataTaskReplay.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = NetworkDataTaskReplay.h; path = NetworkProcess/capture/NetworkDataTaskReplay.h; sourceTree = "<group>"; };
>+		5315876B2076B713004BF9F3 /* NetworkActivityTrackerCocoa.mm */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.objcpp; name = NetworkActivityTrackerCocoa.mm; path = NetworkProcess/cocoa/NetworkActivityTrackerCocoa.mm; sourceTree = "<group>"; };
> 		5321594F1DBAE6D70054AA3C /* NetworkDataTaskCocoa.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = NetworkDataTaskCocoa.h; path = NetworkProcess/cocoa/NetworkDataTaskCocoa.h; sourceTree = "<group>"; };
> 		532159501DBAE6D70054AA3C /* NetworkSessionCocoa.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = NetworkSessionCocoa.h; path = NetworkProcess/cocoa/NetworkSessionCocoa.h; sourceTree = "<group>"; };
> 		532159511DBAE6FC0054AA3C /* NetworkDataTask.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = NetworkDataTask.cpp; path = NetworkProcess/NetworkDataTask.cpp; sourceTree = "<group>"; };
> 		532159521DBAE6FC0054AA3C /* NetworkSession.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = NetworkSession.cpp; path = NetworkProcess/NetworkSession.cpp; sourceTree = "<group>"; };
>+		535BCB902069C49C00CCCE02 /* NetworkActivityTracker.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = NetworkActivityTracker.h; path = NetworkProcess/NetworkActivityTracker.h; sourceTree = "<group>"; };
> 		539EB5461DC2EE40009D48CF /* NetworkDataTaskBlob.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = NetworkDataTaskBlob.cpp; path = NetworkProcess/NetworkDataTaskBlob.cpp; sourceTree = "<group>"; };
> 		539EB5471DC2EE40009D48CF /* NetworkDataTaskBlob.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; name = NetworkDataTaskBlob.h; path = NetworkProcess/NetworkDataTaskBlob.h; sourceTree = "<group>"; };
> 		53DEA3651DDE422E00E82648 /* json.hpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.h; name = json.hpp; path = NetworkProcess/capture/json.hpp; sourceTree = "<group>"; };
>+		53F3CAA5206C443E0086490E /* NetworkActivityTracker.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; name = NetworkActivityTracker.cpp; path = NetworkProcess/NetworkActivityTracker.cpp; sourceTree = "<group>"; };
> 		5750F32A2032D4E500389347 /* LocalAuthentication.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = LocalAuthentication.framework; path = System/Library/Frameworks/LocalAuthentication.framework; sourceTree = SDKROOT; };
> 		5760828B2029854200116678 /* WebCredentialsMessenger.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = WebCredentialsMessenger.h; sourceTree = "<group>"; };
> 		5760828C2029854200116678 /* WebCredentialsMessenger.cpp */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; path = WebCredentialsMessenger.cpp; sourceTree = "<group>"; };
>@@ -6400,6 +6406,8 @@
> 				2DA944BB188511DD00ED86DB /* ios */,
> 				510CC7DC16138E2900D03ED3 /* mac */,
> 				413075971DE84ED70039EC69 /* webrtc */,
>+				53F3CAA5206C443E0086490E /* NetworkActivityTracker.cpp */,
>+				535BCB902069C49C00CCCE02 /* NetworkActivityTracker.h */,
> 				513A16491630A9BF005D7D22 /* NetworkConnectionToWebProcess.cpp */,
> 				513A164A1630A9BF005D7D22 /* NetworkConnectionToWebProcess.h */,
> 				513A164B1630A9BF005D7D22 /* NetworkConnectionToWebProcess.messages.in */,
>@@ -6926,6 +6934,7 @@
> 		7EC4F0F818E4A922008056AF /* cocoa */ = {
> 			isa = PBXGroup;
> 			children = (
>+				5315876B2076B713004BF9F3 /* NetworkActivityTrackerCocoa.mm */,
> 				5321594F1DBAE6D70054AA3C /* NetworkDataTaskCocoa.h */,
> 				5CBC9B8B1C65257300A8FDCF /* NetworkDataTaskCocoa.mm */,
> 				7EC4F0F918E4A945008056AF /* NetworkProcessCocoa.mm */,
>@@ -9015,6 +9024,7 @@
> 				1A6FBD2811E69BC200DB1371 /* NetscapePlugin.h in Headers */,
> 				1A4A9C5612B816CF008FE984 /* NetscapePluginModule.h in Headers */,
> 				1AA5889211EE70400061B882 /* NetscapePluginStream.h in Headers */,
>+				535BCB922069C49C00CCCE02 /* NetworkActivityTracker.h in Headers */,
> 				E1798C7A16E6818800240139 /* NetworkBlobRegistry.h in Headers */,
> 				E4436ECC1A0D040B00EAD204 /* NetworkCache.h in Headers */,
> 				E49D40D71AD3FB170066B7B9 /* NetworkCacheBlobStorage.h in Headers */,
>@@ -10682,6 +10692,7 @@
> 				2D50365E1BCC793F00E20BB3 /* NativeWebGestureEventMac.mm in Sources */,
> 				2DA9449E1884E4F000ED86DB /* NativeWebKeyboardEventIOS.mm in Sources */,
> 				C02BFF1E1251502E009CCBEA /* NativeWebKeyboardEventMac.mm in Sources */,
>+				1C9EBA5C2087E74F00054429 /* NativeWebMouseEventIOS.mm in Sources */,
> 				31EA25D2134F78C0005B1452 /* NativeWebMouseEventMac.mm in Sources */,
> 				2DA9449F1884E4F000ED86DB /* NativeWebTouchEventIOS.mm in Sources */,
> 				DF58C6361371ACA000F9A37C /* NativeWebWheelEventMac.mm in Sources */,
>@@ -10693,6 +10704,8 @@
> 				1A4A9C5512B816CF008FE984 /* NetscapePluginModule.cpp in Sources */,
> 				1A4A9C9A12B821CD008FE984 /* NetscapePluginModuleMac.mm in Sources */,
> 				1AA5889311EE70400061B882 /* NetscapePluginStream.cpp in Sources */,
>+				5379DB72207E9470007D8C33 /* NetworkActivityTracker.cpp in Sources */,
>+				5315876C2076B762004BF9F3 /* NetworkActivityTrackerCocoa.mm in Sources */,
> 				E1798C7916E6818800240139 /* NetworkBlobRegistry.cpp in Sources */,
> 				E4436ECA1A0D03FA00EAD204 /* NetworkCache.cpp in Sources */,
> 				E49D40D91AD3FB210066B7B9 /* NetworkCacheBlobStorage.cpp in Sources */,
>@@ -10708,7 +10721,6 @@
> 				832AE2531BE2E8CD00FAAE10 /* NetworkCacheSpeculativeLoadManager.cpp in Sources */,
> 				83BDCCB91AC5FDB6003F6441 /* NetworkCacheStatistics.cpp in Sources */,
> 				E4436ED01A0D040B00EAD204 /* NetworkCacheStorage.cpp in Sources */,
>-				1C9EBA5C2087E74F00054429 /* NativeWebMouseEventIOS.mm in Sources */,
> 				8310428C1BD6B66F00A715E4 /* NetworkCacheSubresourcesEntry.cpp in Sources */,
> 				5302583D1DCBBD2200DA89C2 /* NetworkCaptureEvent.cpp in Sources */,
> 				530258401DCBBD2200DA89C2 /* NetworkCaptureManager.cpp in Sources */,
>diff --git a/Source/WebKit/WebProcess/Network/WebLoaderStrategy.cpp b/Source/WebKit/WebProcess/Network/WebLoaderStrategy.cpp
>index 86b9509f44290ccae2ff33a9ef985686902557df..8ba060efd2194c406460a212cafff052077a4f0b 100644
>--- a/Source/WebKit/WebProcess/Network/WebLoaderStrategy.cpp
>+++ b/Source/WebKit/WebProcess/Network/WebLoaderStrategy.cpp
>@@ -522,6 +522,11 @@ void WebLoaderStrategy::loadResourceSynchronously(FrameLoader& frameLoader, unsi
>     }
> }
> 
>+void WebLoaderStrategy::pageLoadCompleted(uint64_t webPageID)
>+{
>+    WebProcess::singleton().ensureNetworkProcessConnection().connection().send(Messages::NetworkConnectionToWebProcess::PageLoadCompleted(webPageID), 0);
>+}
>+
> static uint64_t generateLoadIdentifier()
> {
>     static uint64_t identifier = 0;
>diff --git a/Source/WebKit/WebProcess/Network/WebLoaderStrategy.h b/Source/WebKit/WebProcess/Network/WebLoaderStrategy.h
>index 65786330c2a8bcce174ae499488522df8e3e9524..96925bc05816b90bd3cbde6a68149a5ed9003cd3 100644
>--- a/Source/WebKit/WebProcess/Network/WebLoaderStrategy.h
>+++ b/Source/WebKit/WebProcess/Network/WebLoaderStrategy.h
>@@ -49,6 +49,7 @@ public:
>     
>     void loadResource(WebCore::Frame&, WebCore::CachedResource&, WebCore::ResourceRequest&&, const WebCore::ResourceLoaderOptions&, CompletionHandler<void(RefPtr<WebCore::SubresourceLoader>&&)>&&) final;
>     void loadResourceSynchronously(WebCore::FrameLoader&, unsigned long resourceLoadIdentifier, const WebCore::ResourceRequest&, WebCore::ClientCredentialPolicy, const WebCore::FetchOptions&, const WebCore::HTTPHeaderMap&, WebCore::ResourceError&, WebCore::ResourceResponse&, Vector<char>& data) final;
>+    void pageLoadCompleted(uint64_t webPageID) final;
> 
>     void remove(WebCore::ResourceLoader*) final;
>     void setDefersLoading(WebCore::ResourceLoader*, bool) final;
>diff --git a/Source/WebKitLegacy/WebCoreSupport/WebResourceLoadScheduler.cpp b/Source/WebKitLegacy/WebCoreSupport/WebResourceLoadScheduler.cpp
>index c60b2e45335c3a046c4e277cb7e4be6768c7ccc9..641e67c36ebf486c77d400c614a0065cc44d5d4c 100644
>--- a/Source/WebKitLegacy/WebCoreSupport/WebResourceLoadScheduler.cpp
>+++ b/Source/WebKitLegacy/WebCoreSupport/WebResourceLoadScheduler.cpp
>@@ -111,6 +111,10 @@ void WebResourceLoadScheduler::loadResourceSynchronously(FrameLoader& frameLoade
>     ResourceHandle::loadResourceSynchronously(frameLoader.networkingContext(), request, options.credentials == FetchOptions::Credentials::Omit ? StoredCredentialsPolicy::DoNotUse : StoredCredentialsPolicy::Use, error, response, data);
> }
> 
>+void WebResourceLoadScheduler::pageLoadCompleted(uint64_t /*webPageID*/)
>+{
>+}
>+
> void WebResourceLoadScheduler::schedulePluginStreamLoad(Frame& frame, NetscapePlugInStreamLoaderClient& client, ResourceRequest&& request, CompletionHandler<void(RefPtr<WebCore::NetscapePlugInStreamLoader>&&)>&& completionHandler)
> {
>     NetscapePlugInStreamLoader::create(frame, client, WTFMove(request), [this, completionHandler = WTFMove(completionHandler)] (RefPtr<WebCore::NetscapePlugInStreamLoader>&& loader) mutable {
>diff --git a/Source/WebKitLegacy/WebCoreSupport/WebResourceLoadScheduler.h b/Source/WebKitLegacy/WebCoreSupport/WebResourceLoadScheduler.h
>index 8828b5498aced368c56ab8a855739373245f0adb..770d63efc6ac989170de46ea7c3855a20ac65821 100644
>--- a/Source/WebKitLegacy/WebCoreSupport/WebResourceLoadScheduler.h
>+++ b/Source/WebKitLegacy/WebCoreSupport/WebResourceLoadScheduler.h
>@@ -51,6 +51,8 @@ public:
> 
>     void loadResource(WebCore::Frame&, WebCore::CachedResource&, WebCore::ResourceRequest&&, const WebCore::ResourceLoaderOptions&, CompletionHandler<void(RefPtr<WebCore::SubresourceLoader>&&)>&&) final;
>     void loadResourceSynchronously(WebCore::FrameLoader&, unsigned long, const WebCore::ResourceRequest&, WebCore::ClientCredentialPolicy, const WebCore::FetchOptions&, const WebCore::HTTPHeaderMap&, WebCore::ResourceError&, WebCore::ResourceResponse&, Vector<char>&) final;
>+    void pageLoadCompleted(uint64_t webPageID) final;
>+
>     void remove(WebCore::ResourceLoader*) final;
>     void setDefersLoading(WebCore::ResourceLoader*, bool) final;
>     void crossOriginRedirectReceived(WebCore::ResourceLoader*, const WebCore::URL& redirectURL) final;

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Attachments on bug 184838: 338673 | 338681 | 338768 | 338814 | 339164 | 339351