Attachment 338992 Details for Bug 185050 – Part 2 (patch for landing)

[patch] Part 2 (patch for landing)

bug-185050-20180427084016.patch (text/plain), 58.75 KB, created by Wenson Hsieh on 2018-04-27 08:40:17 PDT

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Creator: Wenson Hsieh

Created: 2018-04-27 08:40:17 PDT

Size: 58.75 KB

patch

obsolete

>Subversion Revision: 231095
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index 1d57f4a6f2fff4b22674d55bb4124de982626a16..e3b3ce1632b0f6fa36b556597735fa353cbe232b 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,28 @@
>+2018-04-26  Wenson Hsieh  <wenson_hsieh@apple.com>
>+
>+        Rename minimumLayoutSize to viewLayoutSize
>+        https://bugs.webkit.org/show_bug.cgi?id=185050
>+        <rdar://problem/39624038>
>+
>+        Reviewed by Tim Horton.
>+
>+        See WebKit/ChangeLog for more information. No change in behavior.
>+
>+        * page/ViewportConfiguration.cpp:
>+        (WebCore::ViewportConfiguration::ViewportConfiguration):
>+        (WebCore::ViewportConfiguration::setViewLayoutSize):
>+
>+        Remove a FIXME comment that is addressed by this refactoring.
>+
>+        (WebCore::ViewportConfiguration::shouldOverrideDeviceWidthWithMinDeviceWidth const):
>+        (WebCore::ViewportConfiguration::initialScaleFromSize const):
>+        (WebCore::ViewportConfiguration::minimumScale const):
>+        (WebCore::ViewportConfiguration::updateMinimumLayoutSize):
>+        (WebCore::ViewportConfiguration::setMinimumLayoutSize): Deleted.
>+        * page/ViewportConfiguration.h:
>+        (WebCore::ViewportConfiguration::viewLayoutSize const):
>+        (WebCore::ViewportConfiguration::viewSize const): Deleted.
>+
> 2018-04-27  Wenson Hsieh  <wenson_hsieh@apple.com>
> 
>         [Extra zoom mode] Add a mechanism to override default viewport behaviors in extra zoom mode
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index 8a721e48f4da902b620629234225ea2506ef3dfc..52379b83a054f4d86f7963f3f7cc8c7d44e0b62e 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,86 @@
>+2018-04-26  Wenson Hsieh  <wenson_hsieh@apple.com>
>+
>+        Rename minimumLayoutSize to viewLayoutSize
>+        https://bugs.webkit.org/show_bug.cgi?id=185050
>+        <rdar://problem/39624038>
>+
>+        Reviewed by Tim Horton.
>+
>+        Renames minimumLayoutSize to viewLayoutSize, since the minimum layout size in ViewportConfiguration is now
>+        different from the minimum layout size that is currently pushed down from the UI process (e.g. WKWebView SPI) in
>+        the case where `min-device-width` is used to override the minimum layout size.
>+
>+        * Shared/WebPageCreationParameters.cpp:
>+        (WebKit::WebPageCreationParameters::encode const):
>+        (WebKit::WebPageCreationParameters::decode):
>+        * Shared/WebPageCreationParameters.h:
>+        * UIProcess/API/Cocoa/WKWebView.mm:
>+        (-[WKWebView _processDidExit]):
>+        (-[WKWebView activeViewLayoutSize:]):
>+        (-[WKWebView _dispatchSetViewLayoutSize:]):
>+        (-[WKWebView _frameOrBoundsChanged]):
>+        (-[WKWebView _minimumLayoutSizeOverride]):
>+        (-[WKWebView _setViewLayoutSizeOverride:]):
>+        (-[WKWebView _beginAnimatedResizeWithUpdates:]):
>+        (-[WKWebView _endAnimatedResize]):
>+        (-[WKWebView _overrideLayoutParametersWithMinimumLayoutSize:maximumUnobscuredSizeOverride:]):
>+        (-[WKWebView _clearOverrideLayoutParameters]):
>+        (-[WKWebView _minimumLayoutWidth]):
>+        (-[WKWebView _setMinimumLayoutWidth:]):
>+        (-[WKWebView activeMinimumLayoutSize:]): Deleted.
>+        (-[WKWebView _dispatchSetMinimumLayoutSize:]): Deleted.
>+        (-[WKWebView _setMinimumLayoutSizeOverride:]): Deleted.
>+        (-[WKWebView _overrideLayoutParametersWithMinimumLayoutSize:minimumLayoutSizeForMinimalUI:maximumUnobscuredSizeOverride:]): Deleted.
>+
>+        Remove unused SPI that has been deprecated since iOS 9, has a simple drop-in replacement, and no longer has any
>+        internal clients.
>+
>+        * UIProcess/API/Cocoa/WKWebViewPrivate.h:
>+        * UIProcess/Cocoa/WebViewImpl.mm:
>+        (WebKit::WebViewImpl::setMinimumSizeForAutoLayout):
>+        (WebKit::WebViewImpl::minimumSizeForAutoLayout const):
>+        (WebKit::WebViewImpl::setIntrinsicContentSize):
>+        * UIProcess/DrawingAreaProxy.h:
>+        (WebKit::DrawingAreaProxy::viewLayoutSizeDidChange):
>+        (WebKit::DrawingAreaProxy::minimumLayoutSizeDidChange): Deleted.
>+        * UIProcess/WebPageProxy.cpp:
>+        (WebKit::WebPageProxy::creationParameters):
>+        (WebKit::WebPageProxy::setViewLayoutSize):
>+        (WebKit::WebPageProxy::setMinimumLayoutSize): Deleted.
>+        * UIProcess/WebPageProxy.h:
>+        (WebKit::WebPageProxy::viewLayoutSize const):
>+        (WebKit::WebPageProxy::minimumLayoutSize const): Deleted.
>+        * UIProcess/ios/WebPageProxyIOS.mm:
>+        (WebKit::WebPageProxy::dynamicViewportSizeUpdate):
>+        (WebKit::WebPageProxy::setViewportConfigurationViewLayoutSize):
>+        (WebKit::WebPageProxy::setViewportConfigurationMinimumLayoutSize): Deleted.
>+        * UIProcess/mac/TiledCoreAnimationDrawingAreaProxy.h:
>+        * UIProcess/mac/TiledCoreAnimationDrawingAreaProxy.mm:
>+        (WebKit::TiledCoreAnimationDrawingAreaProxy::viewLayoutSizeDidChange):
>+        (WebKit::TiledCoreAnimationDrawingAreaProxy::didUpdateGeometry):
>+        (WebKit::TiledCoreAnimationDrawingAreaProxy::intrinsicContentSizeDidChange):
>+        (WebKit::TiledCoreAnimationDrawingAreaProxy::willSendUpdateGeometry):
>+        (WebKit::TiledCoreAnimationDrawingAreaProxy::minimumLayoutSizeDidChange): Deleted.
>+        * WebProcess/WebCoreSupport/WebFrameLoaderClient.cpp:
>+        (WebKit::WebFrameLoaderClient::transitionToCommittedForNewPage):
>+        * WebProcess/WebPage/ViewGestureGeometryCollector.cpp:
>+        (WebKit::ViewGestureGeometryCollector::collectGeometryForSmartMagnificationGesture):
>+        * WebProcess/WebPage/WebPage.cpp:
>+        (WebKit::m_credentialsMessenger):
>+        (WebKit::WebPage::setViewLayoutSize):
>+        (WebKit::WebPage::setMinimumLayoutSize): Deleted.
>+        * WebProcess/WebPage/WebPage.h:
>+        (WebKit::WebPage::viewLayoutSize const):
>+        (WebKit::WebPage::minimumLayoutSize const): Deleted.
>+        * WebProcess/WebPage/WebPage.messages.in:
>+        * WebProcess/WebPage/ios/WebPageIOS.mm:
>+        (WebKit::WebPage::setViewportConfigurationViewLayoutSize):
>+        (WebKit::WebPage::dynamicViewportSizeUpdate):
>+        (WebKit::WebPage::setViewportConfigurationMinimumLayoutSize): Deleted.
>+        * WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm:
>+        (WebKit::TiledCoreAnimationDrawingArea::updateIntrinsicContentSizeIfNeeded):
>+        (WebKit::TiledCoreAnimationDrawingArea::updateGeometry):
>+
> 2018-04-27  Wenson Hsieh  <wenson_hsieh@apple.com>
> 
>         [Extra zoom mode] Add a mechanism to override default viewport behaviors in extra zoom mode
>diff --git a/Source/WebCore/page/ViewportConfiguration.cpp b/Source/WebCore/page/ViewportConfiguration.cpp
>index adc681d435d0121ff890fefd4d5217ab66e5f33b..648b8d307c7517d601a770905b2f0c8c425840ac 100644
>--- a/Source/WebCore/page/ViewportConfiguration.cpp
>+++ b/Source/WebCore/page/ViewportConfiguration.cpp
>@@ -59,7 +59,7 @@ static float computedMinDeviceWidth(float minDeviceWidth)
> 
> ViewportConfiguration::ViewportConfiguration()
>     : m_minimumLayoutSize(1024, 768)
>-    , m_viewSize(1024, 768)
>+    , m_viewLayoutSize(1024, 768)
>     , m_canIgnoreScalingConstraints(false)
>     , m_forceAlwaysUserScalable(false)
> {
>@@ -95,14 +95,12 @@ bool ViewportConfiguration::setContentsSize(const IntSize& contentSize)
>     return true;
> }
> 
>-// FIXME: ViewportConfiguration::setMinimumLayoutSize is no longer an accurate name, since the minimum layout size
>-// is not necessarily the size of the view.
>-bool ViewportConfiguration::setMinimumLayoutSize(const FloatSize& minimumLayoutSize)
>+bool ViewportConfiguration::setViewLayoutSize(const FloatSize& viewLayoutSize)
> {
>-    if (m_viewSize == minimumLayoutSize)
>+    if (m_viewLayoutSize == viewLayoutSize)
>         return false;
> 
>-    m_viewSize = minimumLayoutSize;
>+    m_viewLayoutSize = viewLayoutSize;
> 
>     updateMinimumLayoutSize();
>     updateConfiguration();
>@@ -139,7 +137,7 @@ IntSize ViewportConfiguration::layoutSize() const
> 
> bool ViewportConfiguration::shouldOverrideDeviceWidthWithMinDeviceWidth() const
> {
>-    return m_viewSize.width() < computedMinDeviceWidth(m_viewportArguments.minDeviceWidth);
>+    return m_viewLayoutSize.width() < computedMinDeviceWidth(m_viewportArguments.minDeviceWidth);
> }
> 
> bool ViewportConfiguration::shouldIgnoreHorizontalScalingConstraints() const
>@@ -201,11 +199,11 @@ double ViewportConfiguration::initialScaleFromSize(double width, double height,
>     // We want a scale small enough to fit the document width-wise.
>     double initialScale = 0;
>     if (width > 0 && !shouldIgnoreVerticalScalingConstraints())
>-        initialScale = m_viewSize.width() / width;
>+        initialScale = m_viewLayoutSize.width() / width;
> 
>     // Prevent the initial scale from shrinking to a height smaller than our view's minimum height.
>-    if (height > 0 && height * initialScale < m_viewSize.height() && !shouldIgnoreHorizontalScalingConstraints())
>-        initialScale = m_viewSize.height() / height;
>+    if (height > 0 && height * initialScale < m_viewLayoutSize.height() && !shouldIgnoreHorizontalScalingConstraints())
>+        initialScale = m_viewLayoutSize.height() / height;
> 
>     return std::min(std::max(initialScale, shouldIgnoreScalingConstraints ? m_defaultConfiguration.minimumScale : m_configuration.minimumScale), m_configuration.maximumScale);
> }
>@@ -233,12 +231,12 @@ double ViewportConfiguration::minimumScale() const
>         minimumScale = std::min(minimumScale, forceAlwaysUserScalableMinimumScale);
> 
>     double contentWidth = m_contentSize.width();
>-    if (contentWidth > 0 && contentWidth * minimumScale < m_viewSize.width() && !shouldIgnoreVerticalScalingConstraints())
>-        minimumScale = m_viewSize.width() / contentWidth;
>+    if (contentWidth > 0 && contentWidth * minimumScale < m_viewLayoutSize.width() && !shouldIgnoreVerticalScalingConstraints())
>+        minimumScale = m_viewLayoutSize.width() / contentWidth;
> 
>     double contentHeight = m_contentSize.height();
>-    if (contentHeight > 0 && contentHeight * minimumScale < m_viewSize.height() && !shouldIgnoreHorizontalScalingConstraints())
>-        minimumScale = m_viewSize.height() / contentHeight;
>+    if (contentHeight > 0 && contentHeight * minimumScale < m_viewLayoutSize.height() && !shouldIgnoreHorizontalScalingConstraints())
>+        minimumScale = m_viewLayoutSize.height() / contentHeight;
> 
>     minimumScale = std::min(std::max(minimumScale, m_configuration.minimumScale), m_configuration.maximumScale);
> 
>@@ -382,13 +380,13 @@ void ViewportConfiguration::updateConfiguration()
> 
> void ViewportConfiguration::updateMinimumLayoutSize()
> {
>-    if (!m_viewSize.width() || !shouldOverrideDeviceWidthWithMinDeviceWidth()) {
>-        m_minimumLayoutSize = m_viewSize;
>+    if (!m_viewLayoutSize.width() || !shouldOverrideDeviceWidthWithMinDeviceWidth()) {
>+        m_minimumLayoutSize = m_viewLayoutSize;
>         return;
>     }
> 
>     auto minDeviceWidth = computedMinDeviceWidth(m_viewportArguments.minDeviceWidth);
>-    m_minimumLayoutSize = FloatSize(minDeviceWidth, std::roundf(m_viewSize.height() * (minDeviceWidth / m_viewSize.width())));
>+    m_minimumLayoutSize = FloatSize(minDeviceWidth, std::roundf(m_viewLayoutSize.height() * (minDeviceWidth / m_viewLayoutSize.width())));
> }
> 
> double ViewportConfiguration::viewportArgumentsLength(double length) const
>diff --git a/Source/WebCore/page/ViewportConfiguration.h b/Source/WebCore/page/ViewportConfiguration.h
>index d6a50ca45c10062997d82f5b77403caee74be94c..bff1007677f2345c9a9517a52765abd370babd1e 100644
>--- a/Source/WebCore/page/ViewportConfiguration.h
>+++ b/Source/WebCore/page/ViewportConfiguration.h
>@@ -74,10 +74,10 @@ public:
>     const IntSize& contentsSize() const { return m_contentSize; }
>     WEBCORE_EXPORT bool setContentsSize(const IntSize&);
> 
>-    FloatSize viewSize() const { return m_viewSize; }
>+    FloatSize viewLayoutSize() const { return m_viewLayoutSize; }
> 
>     const FloatSize& minimumLayoutSize() const { return m_minimumLayoutSize; }
>-    WEBCORE_EXPORT bool setMinimumLayoutSize(const FloatSize&);
>+    WEBCORE_EXPORT bool setViewLayoutSize(const FloatSize&);
> 
>     const ViewportArguments& viewportArguments() const { return m_viewportArguments; }
>     WEBCORE_EXPORT bool setViewportArguments(const ViewportArguments&);
>@@ -127,7 +127,7 @@ private:
>     Parameters m_defaultConfiguration;
>     IntSize m_contentSize;
>     FloatSize m_minimumLayoutSize;
>-    FloatSize m_viewSize;
>+    FloatSize m_viewLayoutSize;
>     ViewportArguments m_viewportArguments;
> 
>     bool m_canIgnoreScalingConstraints;
>diff --git a/Source/WebKit/Shared/WebPageCreationParameters.cpp b/Source/WebKit/Shared/WebPageCreationParameters.cpp
>index 3cfe3b2e5b142591ca66a8228b9229037c0e31dc..3b0b8aa50fada9567d7ace9a2a573a01a325bdc7 100644
>--- a/Source/WebKit/Shared/WebPageCreationParameters.cpp
>+++ b/Source/WebKit/Shared/WebPageCreationParameters.cpp
>@@ -64,7 +64,7 @@ void WebPageCreationParameters::encode(IPC::Encoder& encoder) const
>     encoder << mediaVolume;
>     encoder << muted;
>     encoder << mayStartMediaWhenInWindow;
>-    encoder << minimumLayoutSize;
>+    encoder << viewLayoutSize;
>     encoder << autoSizingShouldExpandToViewHeight;
>     encoder << viewportSizeForCSSViewportUnits;
>     encoder.encodeEnum(scrollPinningBehavior);
>@@ -89,7 +89,7 @@ void WebPageCreationParameters::encode(IPC::Encoder& encoder) const
>     encoder << overrideScreenSize;
>     encoder << textAutosizingWidth;
>     encoder << ignoresViewportScaleLimits;
>-    encoder << viewportConfigurationMinimumLayoutSize;
>+    encoder << viewportConfigurationViewLayoutSize;
>     encoder << viewportConfigurationViewSize;
>     encoder << maximumUnobscuredSize;
> #endif
>@@ -203,7 +203,7 @@ std::optional<WebPageCreationParameters> WebPageCreationParameters::decode(IPC::
>         return std::nullopt;
>     if (!decoder.decode(parameters.mayStartMediaWhenInWindow))
>         return std::nullopt;
>-    if (!decoder.decode(parameters.minimumLayoutSize))
>+    if (!decoder.decode(parameters.viewLayoutSize))
>         return std::nullopt;
>     if (!decoder.decode(parameters.autoSizingShouldExpandToViewHeight))
>         return std::nullopt;
>@@ -254,7 +254,7 @@ std::optional<WebPageCreationParameters> WebPageCreationParameters::decode(IPC::
>         return std::nullopt;
>     if (!decoder.decode(parameters.ignoresViewportScaleLimits))
>         return std::nullopt;
>-    if (!decoder.decode(parameters.viewportConfigurationMinimumLayoutSize))
>+    if (!decoder.decode(parameters.viewportConfigurationViewLayoutSize))
>         return std::nullopt;
>     if (!decoder.decode(parameters.viewportConfigurationViewSize))
>         return std::nullopt;
>diff --git a/Source/WebKit/Shared/WebPageCreationParameters.h b/Source/WebKit/Shared/WebPageCreationParameters.h
>index 573e17932be2ffb3dc7731e8a1245d1c3c788ccc..06f7ab62088b7b38e85419ec752b76e6a65addab 100644
>--- a/Source/WebKit/Shared/WebPageCreationParameters.h
>+++ b/Source/WebKit/Shared/WebPageCreationParameters.h
>@@ -112,7 +112,7 @@ struct WebPageCreationParameters {
>     WebCore::MediaProducer::MutedStateFlags muted;
>     bool mayStartMediaWhenInWindow;
> 
>-    WebCore::IntSize minimumLayoutSize;
>+    WebCore::IntSize viewLayoutSize;
>     bool autoSizingShouldExpandToViewHeight;
>     std::optional<WebCore::IntSize> viewportSizeForCSSViewportUnits;
>     
>@@ -146,7 +146,7 @@ struct WebPageCreationParameters {
>     WebCore::FloatSize overrideScreenSize;
>     float textAutosizingWidth;
>     bool ignoresViewportScaleLimits;
>-    WebCore::FloatSize viewportConfigurationMinimumLayoutSize;
>+    WebCore::FloatSize viewportConfigurationViewLayoutSize;
>     WebCore::FloatSize viewportConfigurationViewSize;
>     WebCore::FloatSize maximumUnobscuredSize;
> #endif
>diff --git a/Source/WebKit/UIProcess/API/Cocoa/WKWebView.mm b/Source/WebKit/UIProcess/API/Cocoa/WKWebView.mm
>index 4a16e6d3bb7a03545c6ac8dbade947b8ef193fdf..b443524c2dc2b238a9c66f0dbc97ed99b9fed937 100644
>--- a/Source/WebKit/UIProcess/API/Cocoa/WKWebView.mm
>+++ b/Source/WebKit/UIProcess/API/Cocoa/WKWebView.mm
>@@ -277,9 +277,9 @@ @implementation WKWebView {
>     RetainPtr<WKFullScreenWindowController> _fullScreenWindowController;
> #endif
> 
>-    BOOL _overridesMinimumLayoutSize;
>-    CGSize _minimumLayoutSizeOverride;
>-    std::optional<WebCore::FloatSize> _lastSentMinimumLayoutSize;
>+    BOOL _overridesViewLayoutSize;
>+    CGSize _viewLayoutSizeOverride;
>+    std::optional<WebCore::FloatSize> _lastSentViewLayoutSize;
>     BOOL _overridesMaximumUnobscuredSize;
>     CGSize _maximumUnobscuredSizeOverride;
>     std::optional<WebCore::FloatSize> _lastSentMaximumUnobscuredSize;
>@@ -1683,7 +1683,7 @@ - (void)_processDidExit
>     _scrollViewBackgroundColor = WebCore::Color();
>     _delayUpdateVisibleContentRects = NO;
>     _hadDelayedUpdateVisibleContentRects = NO;
>-    _lastSentMinimumLayoutSize = std::nullopt;
>+    _lastSentViewLayoutSize = std::nullopt;
>     _lastSentMaximumUnobscuredSize = std::nullopt;
>     _lastSentDeviceOrientation = std::nullopt;
> 
>@@ -2564,10 +2564,10 @@ - (UIEdgeInsets)_scrollViewSystemContentInset
>     return UIEdgeInsetsAdd([_scrollView _contentScrollInset], self.safeAreaInsets, [_scrollView _edgesApplyingSafeAreaInsetsToContentInset]);
> }
> 
>-- (WebCore::FloatSize)activeMinimumLayoutSize:(const CGRect&)bounds
>+- (WebCore::FloatSize)activeViewLayoutSize:(const CGRect&)bounds
> {
>-    if (_overridesMinimumLayoutSize)
>-        return WebCore::FloatSize(_minimumLayoutSizeOverride);
>+    if (_overridesViewLayoutSize)
>+        return WebCore::FloatSize(_viewLayoutSizeOverride);
> 
> #if __IPHONE_OS_VERSION_MIN_REQUIRED >= 110000
>     return WebCore::FloatSize(UIEdgeInsetsInsetRect(CGRectMake(0, 0, bounds.size.width, bounds.size.height), self._scrollViewSystemContentInset).size);
>@@ -2576,14 +2576,14 @@ - (WebCore::FloatSize)activeMinimumLayoutSize:(const CGRect&)bounds
> #endif
> }
> 
>-- (void)_dispatchSetMinimumLayoutSize:(WebCore::FloatSize)minimumLayoutSize
>+- (void)_dispatchSetViewLayoutSize:(WebCore::FloatSize)viewLayoutSize
> {
>-    if (_lastSentMinimumLayoutSize && CGSizeEqualToSize(_lastSentMinimumLayoutSize.value(), minimumLayoutSize))
>+    if (_lastSentViewLayoutSize && CGSizeEqualToSize(_lastSentViewLayoutSize.value(), viewLayoutSize))
>         return;
> 
>-    LOG_WITH_STREAM(VisibleRects, stream << "-[WKWebView " << _page->pageID() << " _dispatchSetMinimumLayoutSize:] " << minimumLayoutSize << " contentZoomScale " << contentZoomScale(self));
>-    _page->setViewportConfigurationMinimumLayoutSize(minimumLayoutSize);
>-    _lastSentMinimumLayoutSize = minimumLayoutSize;
>+    LOG_WITH_STREAM(VisibleRects, stream << "-[WKWebView " << _page->pageID() << " _dispatchSetViewLayoutSize:] " << viewLayoutSize << " contentZoomScale " << contentZoomScale(self));
>+    _page->setViewportConfigurationViewLayoutSize(viewLayoutSize);
>+    _lastSentViewLayoutSize = viewLayoutSize;
> }
> 
> - (void)_dispatchSetMaximumUnobscuredSize:(WebCore::FloatSize)maximumUnobscuredSize
>@@ -2610,8 +2610,8 @@ - (void)_frameOrBoundsChanged
>     [_scrollView setFrame:bounds];
> 
>     if (_dynamicViewportUpdateMode == DynamicViewportUpdateMode::NotResizing) {
>-        if (!_overridesMinimumLayoutSize)
>-            [self _dispatchSetMinimumLayoutSize:[self activeMinimumLayoutSize:self.bounds]];
>+        if (!_overridesViewLayoutSize)
>+            [self _dispatchSetViewLayoutSize:[self activeViewLayoutSize:self.bounds]];
>         if (!_overridesMaximumUnobscuredSize)
>             [self _dispatchSetMaximumUnobscuredSize:WebCore::FloatSize(bounds.size)];
> 
>@@ -4987,17 +4987,17 @@ - (void)removeFromSuperview
> 
> - (CGSize)_minimumLayoutSizeOverride
> {
>-    ASSERT(_overridesMinimumLayoutSize);
>-    return _minimumLayoutSizeOverride;
>+    ASSERT(_overridesViewLayoutSize);
>+    return _viewLayoutSizeOverride;
> }
> 
>-- (void)_setMinimumLayoutSizeOverride:(CGSize)minimumLayoutSizeOverride
>+- (void)_setViewLayoutSizeOverride:(CGSize)viewLayoutSizeOverride
> {
>-    _overridesMinimumLayoutSize = YES;
>-    _minimumLayoutSizeOverride = minimumLayoutSizeOverride;
>+    _overridesViewLayoutSize = YES;
>+    _viewLayoutSizeOverride = viewLayoutSizeOverride;
> 
>     if (_dynamicViewportUpdateMode == DynamicViewportUpdateMode::NotResizing)
>-        [self _dispatchSetMinimumLayoutSize:WebCore::FloatSize(minimumLayoutSizeOverride)];
>+        [self _dispatchSetViewLayoutSize:WebCore::FloatSize(viewLayoutSizeOverride)];
> 
> }
> 
>@@ -5145,7 +5145,7 @@ - (void)_beginAnimatedResizeWithUpdates:(void (^)(void))updateBlock
> 
>     _dynamicViewportUpdateMode = DynamicViewportUpdateMode::ResizingWithAnimation;
> 
>-    auto oldMinimumLayoutSize = [self activeMinimumLayoutSize:self.bounds];
>+    auto oldViewLayoutSize = [self activeViewLayoutSize:self.bounds];
>     auto oldMaximumUnobscuredSize = activeMaximumUnobscuredSize(self, oldBounds);
>     int32_t oldOrientation = activeOrientation(self);
>     UIEdgeInsets oldObscuredInsets = _obscuredInsets;
>@@ -5153,19 +5153,19 @@ - (void)_beginAnimatedResizeWithUpdates:(void (^)(void))updateBlock
>     updateBlock();
> 
>     CGRect newBounds = self.bounds;
>-    auto newMinimumLayoutSize = [self activeMinimumLayoutSize:newBounds];
>+    auto newViewLayoutSize = [self activeViewLayoutSize:newBounds];
>     auto newMaximumUnobscuredSize = activeMaximumUnobscuredSize(self, newBounds);
>     int32_t newOrientation = activeOrientation(self);
>     UIEdgeInsets newObscuredInsets = _obscuredInsets;
>     CGRect futureUnobscuredRectInSelfCoordinates = UIEdgeInsetsInsetRect(newBounds, _obscuredInsets);
>     CGRect contentViewBounds = [_contentView bounds];
> 
>-    ASSERT_WITH_MESSAGE(!(_overridesMinimumLayoutSize && newMinimumLayoutSize.isEmpty()), "Clients controlling the layout size should maintain a valid layout size to minimize layouts.");
>-    if (CGRectIsEmpty(newBounds) || newMinimumLayoutSize.isEmpty() || CGRectIsEmpty(futureUnobscuredRectInSelfCoordinates) || CGRectIsEmpty(contentViewBounds)) {
>+    ASSERT_WITH_MESSAGE(!(_overridesViewLayoutSize && newViewLayoutSize.isEmpty()), "Clients controlling the layout size should maintain a valid layout size to minimize layouts.");
>+    if (CGRectIsEmpty(newBounds) || newViewLayoutSize.isEmpty() || CGRectIsEmpty(futureUnobscuredRectInSelfCoordinates) || CGRectIsEmpty(contentViewBounds)) {
>         _dynamicViewportUpdateMode = DynamicViewportUpdateMode::NotResizing;
>         [self _frameOrBoundsChanged];
>-        if (_overridesMinimumLayoutSize)
>-            [self _dispatchSetMinimumLayoutSize:newMinimumLayoutSize];
>+        if (_overridesViewLayoutSize)
>+            [self _dispatchSetViewLayoutSize:newViewLayoutSize];
>         if (_overridesMaximumUnobscuredSize)
>             [self _dispatchSetMaximumUnobscuredSize:WebCore::FloatSize(newMaximumUnobscuredSize)];
>         if (_overridesInterfaceOrientation)
>@@ -5176,7 +5176,7 @@ - (void)_beginAnimatedResizeWithUpdates:(void (^)(void))updateBlock
>     }
> 
>     if (CGRectEqualToRect(oldBounds, newBounds)
>-        && oldMinimumLayoutSize == newMinimumLayoutSize
>+        && oldViewLayoutSize == newViewLayoutSize
>         && oldMaximumUnobscuredSize == newMaximumUnobscuredSize
>         && oldOrientation == newOrientation
>         && UIEdgeInsetsEqualToEdgeInsets(oldObscuredInsets, newObscuredInsets)) {
>@@ -5196,13 +5196,13 @@ - (void)_beginAnimatedResizeWithUpdates:(void (^)(void))updateBlock
>     [_resizeAnimationView addSubview:[_contentView unscaledView]];
> 
>     CGSize contentSizeInContentViewCoordinates = contentViewBounds.size;
>-    [_scrollView setMinimumZoomScale:std::min(newMinimumLayoutSize.width() / contentSizeInContentViewCoordinates.width, [_scrollView minimumZoomScale])];
>-    [_scrollView setMaximumZoomScale:std::max(newMinimumLayoutSize.width() / contentSizeInContentViewCoordinates.width, [_scrollView maximumZoomScale])];
>+    [_scrollView setMinimumZoomScale:std::min(newViewLayoutSize.width() / contentSizeInContentViewCoordinates.width, [_scrollView minimumZoomScale])];
>+    [_scrollView setMaximumZoomScale:std::max(newViewLayoutSize.width() / contentSizeInContentViewCoordinates.width, [_scrollView maximumZoomScale])];
> 
>     // Compute the new scale to keep the current content width in the scrollview.
>     CGFloat oldWebViewWidthInContentViewCoordinates = oldUnobscuredContentRect.width();
>     CGFloat visibleContentViewWidthInContentCoordinates = std::min(contentSizeInContentViewCoordinates.width, oldWebViewWidthInContentViewCoordinates);
>-    CGFloat targetScale = newMinimumLayoutSize.width() / visibleContentViewWidthInContentCoordinates;
>+    CGFloat targetScale = newViewLayoutSize.width() / visibleContentViewWidthInContentCoordinates;
>     CGFloat resizeAnimationViewAnimationScale = targetScale / contentZoomScale(self);
>     [_resizeAnimationView setTransform:CGAffineTransformMakeScale(resizeAnimationViewAnimationScale, resizeAnimationViewAnimationScale)];
> 
>@@ -5242,11 +5242,11 @@ - (void)_beginAnimatedResizeWithUpdates:(void (^)(void))updateBlock
>     UIEdgeInsets unobscuredSafeAreaInsets = [self _computedUnobscuredSafeAreaInset];
>     WebCore::FloatBoxExtent unobscuredSafeAreaInsetsExtent(unobscuredSafeAreaInsets.top, unobscuredSafeAreaInsets.right, unobscuredSafeAreaInsets.bottom, unobscuredSafeAreaInsets.left);
> 
>-    _lastSentMinimumLayoutSize = newMinimumLayoutSize;
>+    _lastSentViewLayoutSize = newViewLayoutSize;
>     _lastSentMaximumUnobscuredSize = newMaximumUnobscuredSize;
>     _lastSentDeviceOrientation = newOrientation;
> 
>-    _page->dynamicViewportSizeUpdate(newMinimumLayoutSize, newMaximumUnobscuredSize, visibleRectInContentCoordinates, unobscuredRectInContentCoordinates, futureUnobscuredRectInSelfCoordinates, unobscuredSafeAreaInsetsExtent, targetScale, newOrientation);
>+    _page->dynamicViewportSizeUpdate(newViewLayoutSize, newMaximumUnobscuredSize, visibleRectInContentCoordinates, unobscuredRectInContentCoordinates, futureUnobscuredRectInSelfCoordinates, unobscuredSafeAreaInsetsExtent, targetScale, newOrientation);
>     if (WebKit::DrawingAreaProxy* drawingArea = _page->drawingArea())
>         drawingArea->setSize(WebCore::IntSize(newBounds.size));
> }
>@@ -5311,12 +5311,12 @@ - (void)_endAnimatedResize
>     [self _scheduleVisibleContentRectUpdate];
> 
>     CGRect newBounds = self.bounds;
>-    auto newMinimumLayoutSize = [self activeMinimumLayoutSize:newBounds];
>+    auto newViewLayoutSize = [self activeViewLayoutSize:newBounds];
>     auto newMaximumUnobscuredSize = activeMaximumUnobscuredSize(self, newBounds);
>     int32_t newOrientation = activeOrientation(self);
> 
>-    if (!_lastSentMinimumLayoutSize || newMinimumLayoutSize != _lastSentMinimumLayoutSize.value())
>-        [self _dispatchSetMinimumLayoutSize:newMinimumLayoutSize];
>+    if (!_lastSentViewLayoutSize || newViewLayoutSize != _lastSentViewLayoutSize.value())
>+        [self _dispatchSetViewLayoutSize:newViewLayoutSize];
>     if (!_lastSentMaximumUnobscuredSize || newMaximumUnobscuredSize != _lastSentMaximumUnobscuredSize.value())
>         [self _dispatchSetMaximumUnobscuredSize:WebCore::FloatSize(newMaximumUnobscuredSize)];
>     if (!_lastSentDeviceOrientation || newOrientation != _lastSentDeviceOrientation.value())
>@@ -5417,22 +5417,16 @@ - (void)_snapshotRect:(CGRect)rectInViewCoordinates intoImageOfWidth:(CGFloat)im
>     });
> }
> 
>-- (void)_overrideLayoutParametersWithMinimumLayoutSize:(CGSize)minimumLayoutSize minimumLayoutSizeForMinimalUI:(CGSize)minimumLayoutSizeForMinimalUI maximumUnobscuredSizeOverride:(CGSize)maximumUnobscuredSizeOverride
>-{
>-    UNUSED_PARAM(minimumLayoutSizeForMinimalUI);
>-    [self _overrideLayoutParametersWithMinimumLayoutSize:minimumLayoutSize maximumUnobscuredSizeOverride:maximumUnobscuredSizeOverride];
>-}
>-
> - (void)_overrideLayoutParametersWithMinimumLayoutSize:(CGSize)minimumLayoutSize maximumUnobscuredSizeOverride:(CGSize)maximumUnobscuredSizeOverride
> {
>-    [self _setMinimumLayoutSizeOverride:minimumLayoutSize];
>+    [self _setViewLayoutSizeOverride:minimumLayoutSize];
>     [self _setMaximumUnobscuredSizeOverride:maximumUnobscuredSizeOverride];
> }
> 
> - (void)_clearOverrideLayoutParameters
> {
>-    _overridesMinimumLayoutSize = NO;
>-    _minimumLayoutSizeOverride = CGSizeZero;
>+    _overridesViewLayoutSize = NO;
>+    _viewLayoutSizeOverride = CGSizeZero;
> 
>     _overridesMaximumUnobscuredSize = NO;
>     _maximumUnobscuredSizeOverride = CGSizeZero;
>@@ -5622,14 +5616,14 @@ - (BOOL)_automaticallyAdjustsContentInsets
> 
> - (CGFloat)_minimumLayoutWidth
> {
>-    return _page->minimumLayoutSize().width();
>+    return _page->viewLayoutSize().width();
> }
> 
> - (void)_setMinimumLayoutWidth:(CGFloat)width
> {
>     BOOL expandsToFit = width > 0;
> 
>-    _page->setMinimumLayoutSize(WebCore::IntSize(width, 0));
>+    _page->setViewLayoutSize(WebCore::IntSize(width, 0));
>     _page->setMainFrameIsScrollable(!expandsToFit);
> 
>     _impl->setClipsToVisibleRect(expandsToFit);
>diff --git a/Source/WebKit/UIProcess/API/Cocoa/WKWebViewPrivate.h b/Source/WebKit/UIProcess/API/Cocoa/WKWebViewPrivate.h
>index 707df9217bcdf471b1800ca91ef3ca36267a8080..4dcb5d6c9195306d5021467e4c61604574b954fe 100644
>--- a/Source/WebKit/UIProcess/API/Cocoa/WKWebViewPrivate.h
>+++ b/Source/WebKit/UIProcess/API/Cocoa/WKWebViewPrivate.h
>@@ -225,10 +225,6 @@ typedef NS_OPTIONS(NSUInteger, _WKRectEdge) {
> 
> - (void)_snapshotRect:(CGRect)rectInViewCoordinates intoImageOfWidth:(CGFloat)imageWidth completionHandler:(void(^)(CGImageRef))completionHandler;
> 
>-// Deprecated: Use [_overrideLayoutParametersWithMinimumLayoutSize:maximumUnobscuredSizeOverride:] instead.
>-// This function is kept for binary compatibility with iOS 8.0, it can be removed after the bincompat window.
>-- (void)_overrideLayoutParametersWithMinimumLayoutSize:(CGSize)minimumLayoutSize minimumLayoutSizeForMinimalUI:(CGSize)minimumLayoutSizeForMinimalUI maximumUnobscuredSizeOverride:(CGSize)maximumUnobscuredSizeOverride WK_API_DEPRECATED_WITH_REPLACEMENT("-_overrideLayoutParametersWithMinimumLayoutSize:maximumUnobscuredSizeOverride:", ios(8.0, 9.0));
>-
> - (void)_overrideLayoutParametersWithMinimumLayoutSize:(CGSize)minimumLayoutSize maximumUnobscuredSizeOverride:(CGSize)maximumUnobscuredSizeOverride WK_API_AVAILABLE(ios(9_0));
> 
> - (void)_clearOverrideLayoutParameters WK_API_AVAILABLE(ios(11.0));
>diff --git a/Source/WebKit/UIProcess/Cocoa/WebViewImpl.mm b/Source/WebKit/UIProcess/Cocoa/WebViewImpl.mm
>index 1ab4d2b7e26018513e3af154f135d947e968c856..b3fd3462e3d7dbb4b3b4ec3a18ef86347e686530 100644
>--- a/Source/WebKit/UIProcess/Cocoa/WebViewImpl.mm
>+++ b/Source/WebKit/UIProcess/Cocoa/WebViewImpl.mm
>@@ -1745,7 +1745,7 @@ void WebViewImpl::setMinimumSizeForAutoLayout(CGSize minimumSizeForAutoLayout)
> {
>     bool expandsToFit = minimumSizeForAutoLayout.width > 0;
> 
>-    m_page->setMinimumLayoutSize(WebCore::IntSize(minimumSizeForAutoLayout));
>+    m_page->setViewLayoutSize(WebCore::IntSize(minimumSizeForAutoLayout));
>     m_page->setMainFrameIsScrollable(!expandsToFit);
> 
>     setClipsToVisibleRect(expandsToFit);
>@@ -1753,7 +1753,7 @@ void WebViewImpl::setMinimumSizeForAutoLayout(CGSize minimumSizeForAutoLayout)
> 
> CGSize WebViewImpl::minimumSizeForAutoLayout() const
> {
>-    return m_page->minimumLayoutSize();
>+    return m_page->viewLayoutSize();
> }
> 
> void WebViewImpl::setShouldExpandToViewHeightForAutoLayout(bool shouldExpandToViewHeightForAutoLayout)
>@@ -1773,7 +1773,7 @@ void WebViewImpl::setIntrinsicContentSize(CGSize intrinsicContentSize)
>     // so that autolayout will know to provide space for us.
> 
>     CGSize intrinsicContentSizeAcknowledgingFlexibleWidth = intrinsicContentSize;
>-    if (intrinsicContentSize.width < m_page->minimumLayoutSize().width())
>+    if (intrinsicContentSize.width < m_page->viewLayoutSize().width())
>         intrinsicContentSizeAcknowledgingFlexibleWidth.width = NSViewNoIntrinsicMetric;
> 
>     m_intrinsicContentSize = intrinsicContentSizeAcknowledgingFlexibleWidth;
>diff --git a/Source/WebKit/UIProcess/DrawingAreaProxy.h b/Source/WebKit/UIProcess/DrawingAreaProxy.h
>index 284c98caba5a34171cf7e3fe20780b0842145ac7..aea94952a80fcb424857037238dd26f3b90c2e1f 100644
>--- a/Source/WebKit/UIProcess/DrawingAreaProxy.h
>+++ b/Source/WebKit/UIProcess/DrawingAreaProxy.h
>@@ -71,7 +71,7 @@ public:
>     static constexpr Seconds didUpdateBackingStoreStateTimeout() { return Seconds::fromMilliseconds(500); }
> 
>     virtual void colorSpaceDidChange() { }
>-    virtual void minimumLayoutSizeDidChange() { }
>+    virtual void viewLayoutSizeDidChange() { }
> 
>     virtual void adjustTransientZoom(double, WebCore::FloatPoint) { }
>     virtual void commitTransientZoom(double, WebCore::FloatPoint) { }
>diff --git a/Source/WebKit/UIProcess/WebPageProxy.cpp b/Source/WebKit/UIProcess/WebPageProxy.cpp
>index 6accce0f9f20b33435d8cf25717cf1901fe1f97d..c9b48cb8fa9294568aded7be72fc2a3b0d210551 100644
>--- a/Source/WebKit/UIProcess/WebPageProxy.cpp
>+++ b/Source/WebKit/UIProcess/WebPageProxy.cpp
>@@ -6032,7 +6032,7 @@ WebPageCreationParameters WebPageProxy::creationParameters()
>     parameters.mediaVolume = m_mediaVolume;
>     parameters.muted = m_mutedState;
>     parameters.mayStartMediaWhenInWindow = m_mayStartMediaWhenInWindow;
>-    parameters.minimumLayoutSize = m_minimumLayoutSize;
>+    parameters.viewLayoutSize = m_viewLayoutSize;
>     parameters.autoSizingShouldExpandToViewHeight = m_autoSizingShouldExpandToViewHeight;
>     parameters.viewportSizeForCSSViewportUnits = m_viewportSizeForCSSViewportUnits;
>     parameters.scrollPinningBehavior = m_scrollPinningBehavior;
>@@ -6059,7 +6059,7 @@ WebPageCreationParameters WebPageProxy::creationParameters()
>     parameters.textAutosizingWidth = textAutosizingWidth();
>     parameters.mimeTypesWithCustomContentProviders = m_pageClient.mimeTypesWithCustomContentProviders();
>     parameters.ignoresViewportScaleLimits = m_forceAlwaysUserScalable;
>-    parameters.viewportConfigurationMinimumLayoutSize = m_viewportConfigurationMinimumLayoutSize;
>+    parameters.viewportConfigurationViewLayoutSize = m_viewportConfigurationViewLayoutSize;
>     parameters.maximumUnobscuredSize = m_maximumUnobscuredSize;
> #endif
> 
>@@ -6549,21 +6549,21 @@ void WebPageProxy::savePDFToFileInDownloadsFolder(String&& suggestedFilename, UR
>         API::Data::create(dataReference.data(), dataReference.size()).get());
> }
> 
>-void WebPageProxy::setMinimumLayoutSize(const IntSize& minimumLayoutSize)
>+void WebPageProxy::setViewLayoutSize(const IntSize& viewLayoutSize)
> {
>-    if (m_minimumLayoutSize == minimumLayoutSize)
>+    if (m_viewLayoutSize == viewLayoutSize)
>         return;
> 
>-    m_minimumLayoutSize = minimumLayoutSize;
>+    m_viewLayoutSize = viewLayoutSize;
> 
>     if (!isValid())
>         return;
> 
>-    m_process->send(Messages::WebPage::SetMinimumLayoutSize(minimumLayoutSize), m_pageID);
>-    m_drawingArea->minimumLayoutSizeDidChange();
>+    m_process->send(Messages::WebPage::SetViewLayoutSize(viewLayoutSize), m_pageID);
>+    m_drawingArea->viewLayoutSizeDidChange();
> 
> #if USE(APPKIT)
>-    if (m_minimumLayoutSize.width() <= 0)
>+    if (m_viewLayoutSize.width() <= 0)
>         intrinsicContentSizeDidChange(IntSize(-1, -1));
> #endif
> }
>diff --git a/Source/WebKit/UIProcess/WebPageProxy.h b/Source/WebKit/UIProcess/WebPageProxy.h
>index 911210ea10b0bc0d78eb24dcb349595913a9a8d8..9c9442909ebbe069ed043dd71ed464cc56cb45c3 100644
>--- a/Source/WebKit/UIProcess/WebPageProxy.h
>+++ b/Source/WebKit/UIProcess/WebPageProxy.h
>@@ -545,10 +545,10 @@ public:
>     void overflowScrollWillStartScroll();
>     void overflowScrollDidEndScroll();
> 
>-    void dynamicViewportSizeUpdate(const WebCore::FloatSize& minimumLayoutSize, const WebCore::FloatSize& maximumUnobscuredSize, const WebCore::FloatRect& targetExposedContentRect, const WebCore::FloatRect& targetUnobscuredRect, const WebCore::FloatRect& targetUnobscuredRectInScrollViewCoordinates, const WebCore::FloatBoxExtent& unobscuredSafeAreaInsets, double targetScale, int32_t deviceOrientation);
>+    void dynamicViewportSizeUpdate(const WebCore::FloatSize& viewLayoutSize, const WebCore::FloatSize& maximumUnobscuredSize, const WebCore::FloatRect& targetExposedContentRect, const WebCore::FloatRect& targetUnobscuredRect, const WebCore::FloatRect& targetUnobscuredRectInScrollViewCoordinates, const WebCore::FloatBoxExtent& unobscuredSafeAreaInsets, double targetScale, int32_t deviceOrientation);
>     void synchronizeDynamicViewportUpdate();
> 
>-    void setViewportConfigurationMinimumLayoutSize(const WebCore::FloatSize&);
>+    void setViewportConfigurationViewLayoutSize(const WebCore::FloatSize&);
>     void setMaximumUnobscuredSize(const WebCore::FloatSize&);
>     void setDeviceOrientation(int32_t);
>     int32_t deviceOrientation() const { return m_deviceOrientation; }
>@@ -1076,8 +1076,8 @@ public:
>     void endColorPicker();
> #endif
> 
>-    WebCore::IntSize minimumLayoutSize() const { return m_minimumLayoutSize; }
>-    void setMinimumLayoutSize(const WebCore::IntSize&);
>+    WebCore::IntSize viewLayoutSize() const { return m_viewLayoutSize; }
>+    void setViewLayoutSize(const WebCore::IntSize&);
> 
>     bool autoSizingShouldExpandToViewHeight() const { return m_autoSizingShouldExpandToViewHeight; }
>     void setAutoSizingShouldExpandToViewHeight(bool);
>@@ -2075,7 +2075,7 @@ private:
> 
>     bool m_suppressVisibilityUpdates { false };
>     bool m_autoSizingShouldExpandToViewHeight { false };
>-    WebCore::IntSize m_minimumLayoutSize;
>+    WebCore::IntSize m_viewLayoutSize;
>     std::optional<WebCore::IntSize> m_viewportSizeForCSSViewportUnits;
> 
>     // Visual viewports
>@@ -2134,7 +2134,7 @@ private:
> #if PLATFORM(IOS)
>     std::unique_ptr<NodeAssistanceArguments> m_deferredNodeAssistanceArguments;
>     bool m_forceAlwaysUserScalable { false };
>-    WebCore::FloatSize m_viewportConfigurationMinimumLayoutSize;
>+    WebCore::FloatSize m_viewportConfigurationViewLayoutSize;
>     WebCore::FloatSize m_maximumUnobscuredSize;
> #endif
> 
>diff --git a/Source/WebKit/UIProcess/ios/WebPageProxyIOS.mm b/Source/WebKit/UIProcess/ios/WebPageProxyIOS.mm
>index f50ab2c2625ec865ffbc91df81777e68481e8206..713b2f85e38773afad8ffa515738328ecd461626 100644
>--- a/Source/WebKit/UIProcess/ios/WebPageProxyIOS.mm
>+++ b/Source/WebKit/UIProcess/ios/WebPageProxyIOS.mm
>@@ -305,7 +305,7 @@ void WebPageProxy::overflowScrollDidEndScroll()
>     m_pageClient.overflowScrollDidEndScroll();
> }
> 
>-void WebPageProxy::dynamicViewportSizeUpdate(const FloatSize& minimumLayoutSize, const WebCore::FloatSize& maximumUnobscuredSize, const FloatRect& targetExposedContentRect, const FloatRect& targetUnobscuredRect, const FloatRect& targetUnobscuredRectInScrollViewCoordinates, const WebCore::FloatBoxExtent& unobscuredSafeAreaInsets, double targetScale, int32_t deviceOrientation)
>+void WebPageProxy::dynamicViewportSizeUpdate(const FloatSize& viewLayoutSize, const WebCore::FloatSize& maximumUnobscuredSize, const FloatRect& targetExposedContentRect, const FloatRect& targetUnobscuredRect, const FloatRect& targetUnobscuredRectInScrollViewCoordinates, const WebCore::FloatBoxExtent& unobscuredSafeAreaInsets, double targetScale, int32_t deviceOrientation)
> {
>     if (!isValid())
>         return;
>@@ -314,7 +314,7 @@ void WebPageProxy::dynamicViewportSizeUpdate(const FloatSize& minimumLayoutSize,
> 
>     m_dynamicViewportSizeUpdateWaitingForTarget = true;
>     m_dynamicViewportSizeUpdateWaitingForLayerTreeCommit = true;
>-    m_process->send(Messages::WebPage::DynamicViewportSizeUpdate(minimumLayoutSize, maximumUnobscuredSize, targetExposedContentRect, targetUnobscuredRect, targetUnobscuredRectInScrollViewCoordinates, unobscuredSafeAreaInsets, targetScale, deviceOrientation, ++m_currentDynamicViewportSizeUpdateID), m_pageID);
>+    m_process->send(Messages::WebPage::DynamicViewportSizeUpdate(viewLayoutSize, maximumUnobscuredSize, targetExposedContentRect, targetUnobscuredRect, targetUnobscuredRectInScrollViewCoordinates, unobscuredSafeAreaInsets, targetScale, deviceOrientation, ++m_currentDynamicViewportSizeUpdateID), m_pageID);
> }
> 
> void WebPageProxy::synchronizeDynamicViewportUpdate()
>@@ -354,12 +354,12 @@ void WebPageProxy::synchronizeDynamicViewportUpdate()
>     m_dynamicViewportSizeUpdateWaitingForLayerTreeCommit = false;
> }
> 
>-void WebPageProxy::setViewportConfigurationMinimumLayoutSize(const WebCore::FloatSize& size)
>+void WebPageProxy::setViewportConfigurationViewLayoutSize(const WebCore::FloatSize& size)
> {
>-    m_viewportConfigurationMinimumLayoutSize = size;
>+    m_viewportConfigurationViewLayoutSize = size;
> 
>     if (isValid())
>-        m_process->send(Messages::WebPage::SetViewportConfigurationMinimumLayoutSize(size), m_pageID);
>+        m_process->send(Messages::WebPage::SetViewportConfigurationViewLayoutSize(size), m_pageID);
> }
> 
> void WebPageProxy::setForceAlwaysUserScalable(bool userScalable)
>diff --git a/Source/WebKit/UIProcess/mac/TiledCoreAnimationDrawingAreaProxy.h b/Source/WebKit/UIProcess/mac/TiledCoreAnimationDrawingAreaProxy.h
>index 40b1c9cb201c2c55cb4b7639c2769b24feab28c2..3c97c0c02c6e086e054b997118ff6852b7d2e508 100644
>--- a/Source/WebKit/UIProcess/mac/TiledCoreAnimationDrawingAreaProxy.h
>+++ b/Source/WebKit/UIProcess/mac/TiledCoreAnimationDrawingAreaProxy.h
>@@ -41,7 +41,7 @@ private:
>     void deviceScaleFactorDidChange() override;
>     void sizeDidChange() override;
>     void colorSpaceDidChange() override;
>-    void minimumLayoutSizeDidChange() override;
>+    void viewLayoutSizeDidChange() override;
> 
>     void enterAcceleratedCompositingMode(uint64_t backingStoreStateID, const LayerTreeContext&) override;
>     void exitAcceleratedCompositingMode(uint64_t backingStoreStateID, const UpdateInfo&) override;
>@@ -71,7 +71,7 @@ private:
>     WebCore::IntSize m_lastSentSize;
> 
>     // The last minimum layout size we sent to the web process.
>-    WebCore::IntSize m_lastSentMinimumLayoutSize;
>+    WebCore::IntSize m_lastSentViewLayoutSize;
> 
>     CallbackMap m_callbacks;
> };
>diff --git a/Source/WebKit/UIProcess/mac/TiledCoreAnimationDrawingAreaProxy.mm b/Source/WebKit/UIProcess/mac/TiledCoreAnimationDrawingAreaProxy.mm
>index 323b5dcca4211fdc8440e17234f821a0372141d5..25df64e4d8e9266d8aea8e7f617c4c0fc81c00f1 100644
>--- a/Source/WebKit/UIProcess/mac/TiledCoreAnimationDrawingAreaProxy.mm
>+++ b/Source/WebKit/UIProcess/mac/TiledCoreAnimationDrawingAreaProxy.mm
>@@ -77,7 +77,7 @@ void TiledCoreAnimationDrawingAreaProxy::colorSpaceDidChange()
>     m_webPageProxy.process().send(Messages::DrawingArea::SetColorSpace(m_webPageProxy.colorSpace()), m_webPageProxy.pageID());
> }
> 
>-void TiledCoreAnimationDrawingAreaProxy::minimumLayoutSizeDidChange()
>+void TiledCoreAnimationDrawingAreaProxy::viewLayoutSizeDidChange()
> {
>     if (!m_webPageProxy.isValid())
>         return;
>@@ -112,11 +112,11 @@ void TiledCoreAnimationDrawingAreaProxy::didUpdateGeometry()
> 
>     m_isWaitingForDidUpdateGeometry = false;
> 
>-    IntSize minimumLayoutSize = m_webPageProxy.minimumLayoutSize();
>+    IntSize viewLayoutSize = m_webPageProxy.viewLayoutSize();
> 
>     // If the WKView was resized while we were waiting for a DidUpdateGeometry reply from the web process,
>     // we need to resend the new size here.
>-    if (m_lastSentSize != m_size || m_lastSentMinimumLayoutSize != minimumLayoutSize)
>+    if (m_lastSentSize != m_size || m_lastSentViewLayoutSize != viewLayoutSize)
>         sendUpdateGeometry();
> }
> 
>@@ -128,13 +128,13 @@ void TiledCoreAnimationDrawingAreaProxy::waitForDidUpdateActivityState()
> 
> void TiledCoreAnimationDrawingAreaProxy::intrinsicContentSizeDidChange(const IntSize& newIntrinsicContentSize)
> {
>-    if (m_webPageProxy.minimumLayoutSize().width() > 0)
>+    if (m_webPageProxy.viewLayoutSize().width() > 0)
>         m_webPageProxy.intrinsicContentSizeDidChange(newIntrinsicContentSize);
> }
> 
> void TiledCoreAnimationDrawingAreaProxy::willSendUpdateGeometry()
> {
>-    m_lastSentMinimumLayoutSize = m_webPageProxy.minimumLayoutSize();
>+    m_lastSentViewLayoutSize = m_webPageProxy.viewLayoutSize();
>     m_lastSentSize = m_size;
>     m_isWaitingForDidUpdateGeometry = true;
> }
>diff --git a/Source/WebKit/WebProcess/WebCoreSupport/WebFrameLoaderClient.cpp b/Source/WebKit/WebProcess/WebCoreSupport/WebFrameLoaderClient.cpp
>index 755807367eeafc1d0c197e1b14770aed673c057e..338b69914a8451bc84bda76a2ee9f0ec34ce228a 100644
>--- a/Source/WebKit/WebProcess/WebCoreSupport/WebFrameLoaderClient.cpp
>+++ b/Source/WebKit/WebProcess/WebCoreSupport/WebFrameLoaderClient.cpp
>@@ -1420,10 +1420,10 @@ void WebFrameLoaderClient::transitionToCommittedForNewPage()
>         webPage->fixedLayoutSize(), fixedVisibleContentRect, shouldUseFixedLayout,
>         horizontalScrollbarMode, horizontalLock, verticalScrollbarMode, verticalLock);
> 
>-    if (int minimumLayoutWidth = webPage->minimumLayoutSize().width()) {
>-        int minimumLayoutHeight = std::max(webPage->minimumLayoutSize().height(), 1);
>+    if (int viewLayoutWidth = webPage->viewLayoutSize().width()) {
>+        int viewLayoutHeight = std::max(webPage->viewLayoutSize().height(), 1);
>         int maximumSize = std::numeric_limits<int>::max();
>-        m_frame->coreFrame()->view()->enableAutoSizeMode(true, IntSize(minimumLayoutWidth, minimumLayoutHeight), IntSize(maximumSize, maximumSize));
>+        m_frame->coreFrame()->view()->enableAutoSizeMode(true, IntSize(viewLayoutWidth, viewLayoutHeight), IntSize(maximumSize, maximumSize));
> 
>         if (webPage->autoSizingShouldExpandToViewHeight())
>             m_frame->coreFrame()->view()->setAutoSizeFixedMinimumHeight(webPage->size().height());
>diff --git a/Source/WebKit/WebProcess/WebPage/ViewGestureGeometryCollector.cpp b/Source/WebKit/WebProcess/WebPage/ViewGestureGeometryCollector.cpp
>index a6db0e5b274cbd5e936b7452e0d18b2a1e3c890d..4e17a8f2bae278960e4e72ed1d20015003d62a4a 100644
>--- a/Source/WebKit/WebProcess/WebPage/ViewGestureGeometryCollector.cpp
>+++ b/Source/WebKit/WebProcess/WebPage/ViewGestureGeometryCollector.cpp
>@@ -106,7 +106,7 @@ void ViewGestureGeometryCollector::collectGeometryForSmartMagnificationGesture(F
>             targetScale = textLegibilityScales->second;
> 
>         FloatRect targetRectInContentCoordinates { origin, FloatSize() };
>-        targetRectInContentCoordinates.inflate(m_webPage.viewportConfiguration().viewSize() / (2 * targetScale));
>+        targetRectInContentCoordinates.inflate(m_webPage.viewportConfiguration().viewLayoutSize() / (2 * targetScale));
> 
>         dispatchDidCollectGeometryForSmartMagnificationGesture(origin, targetRectInContentCoordinates, visibleContentRect, true, viewportMinimumScale, viewportMaximumScale);
>         return;
>diff --git a/Source/WebKit/WebProcess/WebPage/WebPage.cpp b/Source/WebKit/WebProcess/WebPage/WebPage.cpp
>index 0ebc2158727b5da7f1aa379228a88fbd740d9d0d..6699df06af7fd91083fe9eed362c92b6ad139957 100644
>--- a/Source/WebKit/WebProcess/WebPage/WebPage.cpp
>+++ b/Source/WebKit/WebProcess/WebPage/WebPage.cpp
>@@ -510,7 +510,7 @@ WebPage::WebPage(uint64_t pageID, WebPageCreationParameters&& parameters)
> 
>     updateIsInWindow(true);
> 
>-    setMinimumLayoutSize(parameters.minimumLayoutSize);
>+    setViewLayoutSize(parameters.viewLayoutSize);
>     setAutoSizingShouldExpandToViewHeight(parameters.autoSizingShouldExpandToViewHeight);
>     setViewportSizeForCSSViewportUnits(parameters.viewportSizeForCSSViewportUnits);
>     
>@@ -612,7 +612,7 @@ WebPage::WebPage(uint64_t pageID, WebPageCreationParameters&& parameters)
> #endif
> 
> #if PLATFORM(IOS)
>-    setViewportConfigurationMinimumLayoutSize(parameters.viewportConfigurationMinimumLayoutSize);
>+    setViewportConfigurationViewLayoutSize(parameters.viewportConfigurationViewLayoutSize);
>     setMaximumUnobscuredSize(parameters.maximumUnobscuredSize);
> #endif
> }
>@@ -4997,23 +4997,23 @@ void WebPage::setAlwaysShowsVerticalScroller(bool alwaysShowsVerticalScroller)
>     view->setVerticalScrollbarMode(alwaysShowsVerticalScroller ? ScrollbarAlwaysOn : m_mainFrameIsScrollable ? ScrollbarAuto : ScrollbarAlwaysOff, alwaysShowsVerticalScroller || !m_mainFrameIsScrollable);
> }
> 
>-void WebPage::setMinimumLayoutSize(const IntSize& minimumLayoutSize)
>+void WebPage::setViewLayoutSize(const IntSize& viewLayoutSize)
> {
>-    if (m_minimumLayoutSize == minimumLayoutSize)
>+    if (m_viewLayoutSize == viewLayoutSize)
>         return;
> 
>-    m_minimumLayoutSize = minimumLayoutSize;
>-    if (minimumLayoutSize.width() <= 0) {
>+    m_viewLayoutSize = viewLayoutSize;
>+    if (viewLayoutSize.width() <= 0) {
>         corePage()->mainFrame().view()->enableAutoSizeMode(false, IntSize(), IntSize());
>         return;
>     }
> 
>-    int minimumLayoutWidth = minimumLayoutSize.width();
>-    int minimumLayoutHeight = std::max(minimumLayoutSize.height(), 1);
>+    int viewLayoutWidth = viewLayoutSize.width();
>+    int viewLayoutHeight = std::max(viewLayoutSize.height(), 1);
> 
>     int maximumSize = std::numeric_limits<int>::max();
> 
>-    corePage()->mainFrame().view()->enableAutoSizeMode(true, IntSize(minimumLayoutWidth, minimumLayoutHeight), IntSize(maximumSize, maximumSize));
>+    corePage()->mainFrame().view()->enableAutoSizeMode(true, IntSize(viewLayoutWidth, viewLayoutHeight), IntSize(maximumSize, maximumSize));
> }
> 
> void WebPage::setAutoSizingShouldExpandToViewHeight(bool shouldExpand)
>diff --git a/Source/WebKit/WebProcess/WebPage/WebPage.h b/Source/WebKit/WebProcess/WebPage/WebPage.h
>index ea652ff5f32a7be8e71d162e5e4e57aa17df88ef..9780cfc6c5af840cbdafb1d093eca8e4e2eef2f1 100644
>--- a/Source/WebKit/WebProcess/WebPage/WebPage.h
>+++ b/Source/WebKit/WebProcess/WebPage/WebPage.h
>@@ -875,10 +875,10 @@ public:
>     void updateVisibilityState(bool isInitialState = false);
> 
> #if PLATFORM(IOS)
>-    void setViewportConfigurationMinimumLayoutSize(const WebCore::FloatSize&);
>+    void setViewportConfigurationViewLayoutSize(const WebCore::FloatSize&);
>     void setMaximumUnobscuredSize(const WebCore::FloatSize&);
>     void setDeviceOrientation(int32_t);
>-    void dynamicViewportSizeUpdate(const WebCore::FloatSize& minimumLayoutSize, const WebCore::FloatSize& maximumUnobscuredSize, const WebCore::FloatRect& targetExposedContentRect, const WebCore::FloatRect& targetUnobscuredRect, const WebCore::FloatRect& targetUnobscuredRectInScrollViewCoordinates, const WebCore::FloatBoxExtent& targetUnobscuredSafeAreaInsets, double scale, int32_t deviceOrientation, uint64_t dynamicViewportSizeUpdateID);
>+    void dynamicViewportSizeUpdate(const WebCore::FloatSize& viewLayoutSize, const WebCore::FloatSize& maximumUnobscuredSize, const WebCore::FloatRect& targetExposedContentRect, const WebCore::FloatRect& targetUnobscuredRect, const WebCore::FloatRect& targetUnobscuredRectInScrollViewCoordinates, const WebCore::FloatBoxExtent& targetUnobscuredSafeAreaInsets, double scale, int32_t deviceOrientation, uint64_t dynamicViewportSizeUpdateID);
>     void synchronizeDynamicViewportUpdate(double& newTargetScale, WebCore::FloatPoint& newScrollPosition, uint64_t& nextValidLayerTreeTransactionID);
>     std::optional<float> scaleFromUIProcess(const VisibleContentRectUpdateInfo&) const;
>     void updateVisibleContentRects(const VisibleContentRectUpdateInfo&, MonotonicTime oldestTimestamp);
>@@ -939,8 +939,8 @@ public:
>     bool alwaysShowsHorizontalScroller() const { return m_alwaysShowsHorizontalScroller; };
>     bool alwaysShowsVerticalScroller() const { return m_alwaysShowsVerticalScroller; };
> 
>-    void setMinimumLayoutSize(const WebCore::IntSize&);
>-    WebCore::IntSize minimumLayoutSize() const { return m_minimumLayoutSize; }
>+    void setViewLayoutSize(const WebCore::IntSize&);
>+    WebCore::IntSize viewLayoutSize() const { return m_viewLayoutSize; }
> 
>     void setAutoSizingShouldExpandToViewHeight(bool shouldExpand);
>     bool autoSizingShouldExpandToViewHeight() { return m_autoSizingShouldExpandToViewHeight; }
>@@ -1592,7 +1592,7 @@ private:
> 
>     HashSet<unsigned long> m_trackedNetworkResourceRequestIdentifiers;
> 
>-    WebCore::IntSize m_minimumLayoutSize;
>+    WebCore::IntSize m_viewLayoutSize;
>     bool m_autoSizingShouldExpandToViewHeight { false };
>     std::optional<WebCore::IntSize> m_viewportSizeForCSSViewportUnits;
> 
>diff --git a/Source/WebKit/WebProcess/WebPage/WebPage.messages.in b/Source/WebKit/WebProcess/WebPage/WebPage.messages.in
>index d2c684d7f2f0f97a7b41e983d5b2f45cd0f8bdcd..5d1cf6f14227d3179861d6fdd4297c8d7d0b77b3 100644
>--- a/Source/WebKit/WebProcess/WebPage/WebPage.messages.in
>+++ b/Source/WebKit/WebProcess/WebPage/WebPage.messages.in
>@@ -41,10 +41,10 @@ messages -> WebPage LegacyReceiver {
>     KeyEvent(WebKit::WebKeyboardEvent event)
>     MouseEvent(WebKit::WebMouseEvent event)
> #if PLATFORM(IOS)
>-    SetViewportConfigurationMinimumLayoutSize(WebCore::FloatSize size)
>+    SetViewportConfigurationViewLayoutSize(WebCore::FloatSize size)
>     SetMaximumUnobscuredSize(WebCore::FloatSize size)
>     SetDeviceOrientation(int32_t deviceOrientation)
>-    DynamicViewportSizeUpdate(WebCore::FloatSize minimumLayoutSize, WebCore::FloatSize maximumUnobscuredSize, WebCore::FloatRect targetExposedContentRect, WebCore::FloatRect targetUnobscuredRect, WebCore::FloatRect targetUnobscuredRectInScrollViewCoordinates, WebCore::RectEdges<float> targetUnobscuredSafeAreaInsets, double scale, int32_t deviceOrientation, uint64_t dynamicViewportSizeUpdateID)
>+    DynamicViewportSizeUpdate(WebCore::FloatSize viewLayoutSize, WebCore::FloatSize maximumUnobscuredSize, WebCore::FloatRect targetExposedContentRect, WebCore::FloatRect targetUnobscuredRect, WebCore::FloatRect targetUnobscuredRectInScrollViewCoordinates, WebCore::RectEdges<float> targetUnobscuredSafeAreaInsets, double scale, int32_t deviceOrientation, uint64_t dynamicViewportSizeUpdateID)
>     SynchronizeDynamicViewportUpdate() -> (double newTargetScale, WebCore::FloatPoint newScrollPosition, uint64_t nextValidLayerTreeTransactionID)
> 
>     HandleTap(WebCore::IntPoint point, uint64_t lastLayerTreeTransactionId)
>@@ -408,7 +408,7 @@ messages -> WebPage LegacyReceiver {
>     SetAlwaysShowsHorizontalScroller(bool alwaysShowsHorizontalScroller)
>     SetAlwaysShowsVerticalScroller(bool alwaysShowsVerticalScroller)
> 
>-    SetMinimumLayoutSize(WebCore::IntSize minimumLayoutSize)
>+    SetViewLayoutSize(WebCore::IntSize viewLayoutSize)
>     SetAutoSizingShouldExpandToViewHeight(bool shouldExpand)
> 
>     SetViewportSizeForCSSViewportUnits(std::optional<WebCore::IntSize> viewportSize)
>diff --git a/Source/WebKit/WebProcess/WebPage/ios/WebPageIOS.mm b/Source/WebKit/WebProcess/WebPage/ios/WebPageIOS.mm
>index e47584d579d31e0848d6367322e7c772474dcc21..ff770d667850ad0c44294c745aa73c2ca4fb37f3 100644
>--- a/Source/WebKit/WebProcess/WebPage/ios/WebPageIOS.mm
>+++ b/Source/WebKit/WebProcess/WebPage/ios/WebPageIOS.mm
>@@ -2454,10 +2454,10 @@ void WebPage::autofillLoginCredentials(const String& username, const String& pas
>     }
> }
> 
>-void WebPage::setViewportConfigurationMinimumLayoutSize(const FloatSize& size)
>+void WebPage::setViewportConfigurationViewLayoutSize(const FloatSize& size)
> {
>-    LOG_WITH_STREAM(VisibleRects, stream << "WebPage " << m_pageID << " setViewportConfigurationMinimumLayoutSize " << size);
>-    if (m_viewportConfiguration.setMinimumLayoutSize(size))
>+    LOG_WITH_STREAM(VisibleRects, stream << "WebPage " << m_pageID << " setViewportConfigurationViewLayoutSize " << size);
>+    if (m_viewportConfiguration.setViewLayoutSize(size))
>         viewportConfigurationChanged();
> }
> 
>@@ -2492,12 +2492,12 @@ void WebPage::resetTextAutosizing()
>     }
> }
> 
>-void WebPage::dynamicViewportSizeUpdate(const FloatSize& minimumLayoutSize, const WebCore::FloatSize& maximumUnobscuredSize, const FloatRect& targetExposedContentRect, const FloatRect& targetUnobscuredRect, const WebCore::FloatRect& targetUnobscuredRectInScrollViewCoordinates, const WebCore::FloatBoxExtent& targetUnobscuredSafeAreaInsets, double targetScale, int32_t deviceOrientation, uint64_t dynamicViewportSizeUpdateID)
>+void WebPage::dynamicViewportSizeUpdate(const FloatSize& viewLayoutSize, const WebCore::FloatSize& maximumUnobscuredSize, const FloatRect& targetExposedContentRect, const FloatRect& targetUnobscuredRect, const WebCore::FloatRect& targetUnobscuredRectInScrollViewCoordinates, const WebCore::FloatBoxExtent& targetUnobscuredSafeAreaInsets, double targetScale, int32_t deviceOrientation, uint64_t dynamicViewportSizeUpdateID)
> {
>     SetForScope<bool> dynamicSizeUpdateGuard(m_inDynamicSizeUpdate, true);
>     // FIXME: this does not handle the cases where the content would change the content size or scroll position from JavaScript.
>     // To handle those cases, we would need to redo this computation on every change until the next visible content rect update.
>-    LOG_WITH_STREAM(VisibleRects, stream << "\nWebPage::dynamicViewportSizeUpdate - minimumLayoutSize " << minimumLayoutSize << " targetUnobscuredRect " << targetUnobscuredRect << " targetExposedContentRect " << targetExposedContentRect << " targetScale " << targetScale);
>+    LOG_WITH_STREAM(VisibleRects, stream << "\nWebPage::dynamicViewportSizeUpdate - viewLayoutSize " << viewLayoutSize << " targetUnobscuredRect " << targetUnobscuredRect << " targetExposedContentRect " << targetExposedContentRect << " targetScale " << targetScale);
> 
>     FrameView& frameView = *m_page->mainFrame().view();
>     IntSize oldContentSize = frameView.contentsSize();
>@@ -2529,8 +2529,8 @@ void WebPage::dynamicViewportSizeUpdate(const FloatSize& minimumLayoutSize, cons
>         }
>     }
> 
>-    LOG_WITH_STREAM(VisibleRects, stream << "WebPage::dynamicViewportSizeUpdate setting minimum layout size to " << minimumLayoutSize);
>-    m_viewportConfiguration.setMinimumLayoutSize(minimumLayoutSize);
>+    LOG_WITH_STREAM(VisibleRects, stream << "WebPage::dynamicViewportSizeUpdate setting view layout size to " << viewLayoutSize);
>+    m_viewportConfiguration.setViewLayoutSize(viewLayoutSize);
>     IntSize newLayoutSize = m_viewportConfiguration.layoutSize();
> 
>     if (setFixedLayoutSize(newLayoutSize))
>@@ -2612,7 +2612,7 @@ void WebPage::dynamicViewportSizeUpdate(const FloatSize& minimumLayoutSize, cons
>                 newExposedContentRect.setY(0);
>             }
> 
>-            bool likelyResponsiveDesignViewport = newLayoutSize.width() == minimumLayoutSize.width() && areEssentiallyEqualAsFloat(scale, 1);
>+            bool likelyResponsiveDesignViewport = newLayoutSize.width() == viewLayoutSize.width() && areEssentiallyEqualAsFloat(scale, 1);
>             bool contentBleedsOutsideLayoutWidth = newContentSize.width() > newLayoutSize.width();
>             bool originalScrollPositionWasOnTheLeftEdge = targetUnobscuredRect.x() <= 0;
>             if (likelyResponsiveDesignViewport && contentBleedsOutsideLayoutWidth && originalScrollPositionWasOnTheLeftEdge) {
>diff --git a/Source/WebKit/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm b/Source/WebKit/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm
>index f211efdcc0940509cf240378e8528b6680a7e2f7..d02ed721a7b0aa2c9f00dd8d1b6995573dbc2d83 100644
>--- a/Source/WebKit/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm
>+++ b/Source/WebKit/WebProcess/WebPage/mac/TiledCoreAnimationDrawingArea.mm
>@@ -249,7 +249,7 @@ void TiledCoreAnimationDrawingArea::mainFrameContentSizeChanged(const IntSize& s
> 
> void TiledCoreAnimationDrawingArea::updateIntrinsicContentSizeIfNeeded()
> {
>-    if (!m_webPage.minimumLayoutSize().width())
>+    if (!m_webPage.viewLayoutSize().width())
>         return;
> 
>     FrameView* frameView = m_webPage.mainFrameView();
>@@ -552,7 +552,7 @@ void TiledCoreAnimationDrawingArea::updateGeometry(const IntSize& viewSize, bool
>     IntSize size = viewSize;
>     IntSize contentSize = IntSize(-1, -1);
> 
>-    if (!m_webPage.minimumLayoutSize().width() || m_webPage.autoSizingShouldExpandToViewHeight())
>+    if (!m_webPage.viewLayoutSize().width() || m_webPage.autoSizingShouldExpandToViewHeight())
>         m_webPage.setSize(size);
> 
>     FrameView* frameView = m_webPage.mainFrameView();
>@@ -562,7 +562,7 @@ void TiledCoreAnimationDrawingArea::updateGeometry(const IntSize& viewSize, bool
> 
>     m_webPage.layoutIfNeeded();
> 
>-    if (m_webPage.minimumLayoutSize().width() && frameView) {
>+    if (m_webPage.viewLayoutSize().width() && frameView) {
>         contentSize = frameView->autoSizingIntrinsicContentSize();
>         size = contentSize;
>     }

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Attachments on bug 185050: 338953 | 338962 | 338964 | 338975 | 338987 | 338992 | 338994