Attachment 397183 Details for Bug 202109 – Patch

[patch] Patch

bug-202109-20200422124658.patch (text/plain), 26.07 KB, created by Antoine Quint on 2020-04-22 03:46:59 PDT

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Creator: Antoine Quint

Created: 2020-04-22 03:46:59 PDT

Size: 26.07 KB

patch

obsolete

>Subversion Revision: 260504
>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index 0468c2606e519b447b911fd0a1115057985e973e..8be9783fa666b4f05eccbd97446191b1f1b77072 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,45 @@
>+2020-04-22  Antoine Quint  <graouts@apple.com>
>+
>+        [Web Animations] Coordinate "update animations and send events" procedure across multiple timelines
>+        https://bugs.webkit.org/show_bug.cgi?id=202109
>+        <rdar://problem/59470821>
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        So far, although we did manage multiple animation timelines per document, we mostly operated under the assumption that there really was a single timeline.
>+        In this patch we make the "update animations and send events" procedure, which is central to the lifecycle of animations, work with multiple timelines such
>+        that a single microtask checkpoint is performed even with multiple timelines, whereas we would perform one per timeline before. To do this, we move much of
>+        the logic DocumentTimeline::updateAnimationsAndSendEvents() to DocumentTimelinesController where each step is run across each timeline, rather than running
>+        all steps for each timeline one after the other, respecting the single microtask checkpoint in the middle of the process.
>+
>+        To minimize code churn at this stage, we still keep a fair bit of logic in DocumentTimeline and, while we remove updateAnimationsAndSendEvents(),
>+        internalUpdateAnimationsAndSendEvents() and updateCurrentTime(), we expose three methods that allow to run the pre-flight sequence in
>+        documentWillUpdateAnimationsAndSendEvents(), collect pending events in prepareForPendingAnimationEventsDispatch() and run the post-flight sequence
>+        in documentDidUpdateAnimationsAndSendEvents().
>+
>+        None of the logic changes, this is just moving code around. In the future, more patches will move code from DocumentTimeline up to DocumentTimelinesController
>+        such that events are enqueued there, and animation scheduling as well. But this already lets us pass a new test that used to flakily reject promises in the WPT
>+        test web-animations/timing-model/timelines/update-and-send-events.html.
>+
>+        * animation/AnimationTimeline.h:
>+        (WebCore::AnimationTimeline::relevantAnimations const):
>+        (WebCore::AnimationTimeline::allAnimations const):
>+        * animation/DocumentTimeline.cpp:
>+        (WebCore::DocumentTimeline::documentWillUpdateAnimationsAndSendEvents):
>+        (WebCore::DocumentTimeline::documentDidUpdateAnimationsAndSendEvents):
>+        (WebCore::DocumentTimeline::prepareForPendingAnimationEventsDispatch):
>+        (WebCore::DocumentTimeline::updateCurrentTime): Deleted.
>+        (WebCore::DocumentTimeline::updateAnimationsAndSendEvents): Deleted.
>+        (WebCore::DocumentTimeline::internalUpdateAnimationsAndSendEvents): Deleted.
>+        * animation/DocumentTimeline.h:
>+        * animation/DocumentTimelinesController.cpp:
>+        (WebCore::DocumentTimelinesController::DocumentTimelinesController):
>+        (WebCore::DocumentTimelinesController::updateAnimationsAndSendEvents):
>+        * animation/DocumentTimelinesController.h:
>+        * animation/WebAnimationTypes.h:
>+        * dom/Document.cpp:
>+        (WebCore::Document::ensureTimelinesController):
>+
> 2020-04-21  Antoine Quint  <graouts@apple.com>
> 
>         [Web Animations] Add a supporting object for Document to manage timelines
>diff --git a/Source/WebCore/animation/AnimationTimeline.h b/Source/WebCore/animation/AnimationTimeline.h
>index a4282394605e3cfbd867f59735065349145ab9ab..4edc55342f0128550b90438a67136f67085c0a24 100644
>--- a/Source/WebCore/animation/AnimationTimeline.h
>+++ b/Source/WebCore/animation/AnimationTimeline.h
>@@ -50,6 +50,9 @@ class AnimationTimeline : public RefCounted<AnimationTimeline>, public CanMakeWe
> public:
>     virtual bool isDocumentTimeline() const { return false; }
> 
>+    AnimationCollection relevantAnimations() const { return m_animations; }
>+    Vector<WeakPtr<WebAnimation>> allAnimations() const { return m_allAnimations; }
>+
>     void forgetAnimation(WebAnimation*);
>     virtual void animationTimingDidChange(WebAnimation&);
>     virtual void removeAnimation(WebAnimation&);
>diff --git a/Source/WebCore/animation/DocumentTimeline.cpp b/Source/WebCore/animation/DocumentTimeline.cpp
>index 1cc142cd1e006a759524e311c82db8a3b08dc839..54c89cdb65be67d96627a0f14d0a130986b83d33 100644
>--- a/Source/WebCore/animation/DocumentTimeline.cpp
>+++ b/Source/WebCore/animation/DocumentTimeline.cpp
>@@ -33,7 +33,6 @@
> #include "DeclarativeAnimation.h"
> #include "Document.h"
> #include "DocumentTimelinesController.h"
>-#include "EventLoop.h"
> #include "EventNames.h"
> #include "GraphicsLayer.h"
> #include "KeyframeEffect.h"
>@@ -362,36 +361,21 @@ bool DocumentTimeline::shouldRunUpdateAnimationsAndSendEventsIgnoringSuspensionS
>     return !m_animations.isEmpty() || !m_pendingAnimationEvents.isEmpty() || !m_acceleratedAnimationsPendingRunningStateChange.isEmpty();
> }
> 
>-void DocumentTimeline::updateCurrentTime(DOMHighResTimeStamp timestamp)
>+DocumentTimeline::ShouldUpdateAnimationsAndSendEvents DocumentTimeline::documentWillUpdateAnimationsAndSendEvents(DOMHighResTimeStamp timestamp)
> {
>     // We need to freeze the current time even if no animation is running.
>     // document.timeline.currentTime may be called from a rAF callback and
>     // it has to match the rAF timestamp.
>     if (!m_isSuspended || !shouldRunUpdateAnimationsAndSendEventsIgnoringSuspensionState())
>         cacheCurrentTime(timestamp);
>-}
> 
>-void DocumentTimeline::updateAnimationsAndSendEvents()
>-{
>     // Updating animations and sending events may invalidate the timing of some animations, so we must set the m_animationResolutionScheduled
>     // flag to false prior to running that procedure to allow animation with timing model updates to schedule updates.
>-    m_animationResolutionScheduled = false;
>-
>-    if (m_isSuspended)
>-        return;
>-
>-    if (!shouldRunUpdateAnimationsAndSendEventsIgnoringSuspensionState())
>-        return;
>-
>-    internalUpdateAnimationsAndSendEvents();
>-    applyPendingAcceleratedAnimations();
>+    bool wasAnimationResolutionScheduled = std::exchange(m_animationResolutionScheduled, false);
> 
>-    if (!m_animationResolutionScheduled)
>-        scheduleNextTick();
>-}
>+    if (!wasAnimationResolutionScheduled || m_isSuspended || !shouldRunUpdateAnimationsAndSendEventsIgnoringSuspensionState())
>+        return DocumentTimeline::ShouldUpdateAnimationsAndSendEvents::No;
> 
>-void DocumentTimeline::internalUpdateAnimationsAndSendEvents()
>-{
>     m_numberOfAnimationTimelineInvalidationsForTesting++;
> 
>     // enqueueAnimationEvent() calls scheduleAnimationResolution() to ensure that the "update animations and send events"
>@@ -399,77 +383,15 @@ void DocumentTimeline::internalUpdateAnimationsAndSendEvents()
>     // this procedure is running should not schedule animation resolution until the event queue has been cleared.
>     m_shouldScheduleAnimationResolutionForNewPendingEvents = false;
> 
>-    // https://drafts.csswg.org/web-animations/#update-animations-and-send-events
>-
>-    // 1. Update the current time of all timelines associated with doc passing now as the timestamp.
>-
>-    Vector<RefPtr<WebAnimation>> animationsToRemove;
>-    Vector<RefPtr<CSSTransition>> completedTransitions;
>-
>-    for (auto& animation : m_animations) {
>-        if (animation->timeline() != this) {
>-            ASSERT(!animation->timeline());
>-            animationsToRemove.append(animation);
>-            continue;
>-        }
>-
>-        // This will notify the animation that timing has changed and will call automatically
>-        // schedule invalidation if required for this animation.
>-        animation->tick();
>-
>-        if (!animation->isRelevant() && !animation->needsTick())
>-            animationsToRemove.append(animation);
>-
>-        if (!animation->needsTick() && is<CSSTransition>(animation) && animation->playState() == WebAnimation::PlayState::Finished) {
>-            auto* transition = downcast<CSSTransition>(animation.get());
>-            if (transition->owningElement())
>-                completedTransitions.append(transition);
>-        }
>-    }
>-
>-    // 2. Remove replaced animations for doc.
>-    removeReplacedAnimations();
>-
>-    // 3. Perform a microtask checkpoint.
>-    if (auto document = makeRefPtr(this->document()))
>-        document->eventLoop().performMicrotaskCheckpoint();
>-
>-    // 4. Let events to dispatch be a copy of doc's pending animation event queue.
>-    // 5. Clear doc's pending animation event queue.
>-    auto pendingAnimationEvents = WTFMove(m_pendingAnimationEvents);
>-    m_shouldScheduleAnimationResolutionForNewPendingEvents = true;
>-
>-    // 6. Perform a stable sort of the animation events in events to dispatch as follows.
>-    std::stable_sort(pendingAnimationEvents.begin(), pendingAnimationEvents.end(), [] (const Ref<AnimationEventBase>& lhs, const Ref<AnimationEventBase>& rhs) {
>-        // 1. Sort the events by their scheduled event time such that events that were scheduled to occur earlier, sort before events scheduled to occur later
>-        // and events whose scheduled event time is unresolved sort before events with a resolved scheduled event time.
>-        // 2. Within events with equal scheduled event times, sort by their composite order. FIXME: We don't do this.
>-        if (lhs->timelineTime() && !rhs->timelineTime())
>-            return false;
>-        if (!lhs->timelineTime() && rhs->timelineTime())
>-            return true;
>-        if (!lhs->timelineTime() && !rhs->timelineTime())
>-            return true;
>-        return lhs->timelineTime().value() < rhs->timelineTime().value();
>-    });
>-
>-    // 7. Dispatch each of the events in events to dispatch at their corresponding target using the order established in the previous step.
>-    for (auto& pendingAnimationEvent : pendingAnimationEvents)
>-        pendingAnimationEvent->target()->dispatchEvent(pendingAnimationEvent);
>+    return DocumentTimeline::ShouldUpdateAnimationsAndSendEvents::Yes;
>+}
> 
>-    // This will cancel any scheduled invalidation if we end up removing all animations.
>-    for (auto& animation : animationsToRemove) {
>-        // An animation that was initially marked as irrelevant may have changed while we were sending events, so we run the same
>-        // check that we ran to add it to animationsToRemove in the first place.
>-        if (!animation->isRelevant() && !animation->needsTick())
>-            removeAnimation(*animation);
>-    }
>+void DocumentTimeline::documentDidUpdateAnimationsAndSendEvents()
>+{
>+    applyPendingAcceleratedAnimations();
> 
>-    // Now that animations that needed removal have been removed, let's update the list of completed transitions.
>-    // This needs to happen after dealing with the list of animations to remove as the animation may have been
>-    // removed from the list of completed transitions otherwise.
>-    for (auto& completedTransition : completedTransitions)
>-        transitionDidComplete(completedTransition);
>+    if (!m_animationResolutionScheduled)
>+        scheduleNextTick();
> }
> 
> bool DocumentTimeline::animationCanBeRemoved(WebAnimation& animation)
>@@ -735,6 +657,12 @@ void DocumentTimeline::enqueueAnimationEvent(AnimationEventBase& event)
>         scheduleAnimationResolution();
> }
> 
>+AnimationEvents DocumentTimeline::prepareForPendingAnimationEventsDispatch()
>+{
>+    m_shouldScheduleAnimationResolutionForNewPendingEvents = true;
>+    return std::exchange(m_pendingAnimationEvents, { });
>+}
>+
> Vector<std::pair<String, double>> DocumentTimeline::acceleratedAnimationsForElement(Element& element) const
> {
>     auto* renderer = element.renderer();
>diff --git a/Source/WebCore/animation/DocumentTimeline.h b/Source/WebCore/animation/DocumentTimeline.h
>index 75d7748c5bf6f4b4e45899a3eeb81f4fe5405f32..6c57accba015869fd0e9a131f4687d16fefff291 100644
>--- a/Source/WebCore/animation/DocumentTimeline.h
>+++ b/Source/WebCore/animation/DocumentTimeline.h
>@@ -58,6 +58,7 @@ public:
>     void removeAnimation(WebAnimation&) override;
>     void animationWasAddedToElement(WebAnimation&, Element&) final;
>     void animationWasRemovedFromElement(WebAnimation&, Element&) final;
>+    void transitionDidComplete(RefPtr<CSSTransition>);
> 
>     // If possible, compute the visual extent of any transform animation on the given renderer
>     // using the given rect, returning the result in the rect. Return false if there is some
>@@ -72,9 +73,11 @@ public:
> 
>     void enqueueAnimationEvent(AnimationEventBase&);
>     
>-    bool scheduledUpdate() const { return m_animationResolutionScheduled; }
>-    void updateCurrentTime(DOMHighResTimeStamp timestamp);
>-    void updateAnimationsAndSendEvents();
>+    enum class ShouldUpdateAnimationsAndSendEvents : uint8_t { Yes, No };
>+    ShouldUpdateAnimationsAndSendEvents documentWillUpdateAnimationsAndSendEvents(DOMHighResTimeStamp);
>+    void removeReplacedAnimations();
>+    AnimationEvents prepareForPendingAnimationEventsDispatch();
>+    void documentDidUpdateAnimationsAndSendEvents();
> 
>     void updateThrottlingState();
>     WEBCORE_EXPORT Seconds animationInterval() const;
>@@ -98,9 +101,7 @@ private:
>     void clearTickScheduleTimer();
>     void internalUpdateAnimationsAndSendEvents();
>     void updateListOfElementsWithRunningAcceleratedAnimationsForElement(Element&);
>-    void transitionDidComplete(RefPtr<CSSTransition>);
>     void scheduleNextTick();
>-    void removeReplacedAnimations();
>     bool animationCanBeRemoved(WebAnimation&);
>     bool shouldRunUpdateAnimationsAndSendEventsIgnoringSuspensionState() const;
> 
>@@ -108,7 +109,7 @@ private:
>     GenericTaskQueue<Timer> m_currentTimeClearingTaskQueue;
>     HashSet<RefPtr<WebAnimation>> m_acceleratedAnimationsPendingRunningStateChange;
>     HashSet<Element*> m_elementsWithRunningAcceleratedAnimations;
>-    Vector<Ref<AnimationEventBase>> m_pendingAnimationEvents;
>+    AnimationEvents m_pendingAnimationEvents;
>     WeakPtr<Document> m_document;
>     Markable<Seconds, Seconds::MarkableTraits> m_cachedCurrentTime;
>     Seconds m_originTime;
>diff --git a/Source/WebCore/animation/DocumentTimelinesController.cpp b/Source/WebCore/animation/DocumentTimelinesController.cpp
>index d6a01e5d77ed7c3c9f371ac81222f827c8443eab..5e9d3f222e610ee1e98e4742b01924028c8487b4 100644
>--- a/Source/WebCore/animation/DocumentTimelinesController.cpp
>+++ b/Source/WebCore/animation/DocumentTimelinesController.cpp
>@@ -26,11 +26,18 @@
> #include "config.h"
> #include "DocumentTimelinesController.h"
> 
>+#include "AnimationEventBase.h"
>+#include "CSSTransition.h"
>+#include "Document.h"
> #include "DocumentTimeline.h"
>+#include "EventLoop.h"
>+#include "WebAnimation.h"
>+#include "WebAnimationTypes.h"
> 
> namespace WebCore {
> 
>-DocumentTimelinesController::DocumentTimelinesController()
>+DocumentTimelinesController::DocumentTimelinesController(Document& document)
>+    : m_document(document)
> {
> }
> 
>@@ -58,20 +65,95 @@ void DocumentTimelinesController::updateAnimationsAndSendEvents(DOMHighResTimeSt
> {
>     ASSERT(!m_timelines.hasNullReferences());
> 
>-    // We need to copy m_timelines before iterating over its members since calling updateAnimationsAndSendEvents() may mutate m_timelines.
>-    Vector<RefPtr<DocumentTimeline>> timelines;
>-    bool shouldUpdateAnimations = false;
>-    for (auto& timeline : m_timelines) {
>-        if (timeline.scheduledUpdate())
>-            shouldUpdateAnimations = true;
>-        timelines.append(&timeline);
>+    // We need to copy m_timelines before iterating over its members since the steps in this procedure may mutate m_timelines.
>+    Vector<RefPtr<DocumentTimeline>> protectedTimelines;
>+    for (auto& timeline : m_timelines)
>+        protectedTimelines.append(&timeline);
>+
>+    // 1. Update the current time of all timelines associated with doc passing now as the timestamp.
>+    Vector<DocumentTimeline*> timelinesToUpdate;
>+    Vector<RefPtr<WebAnimation>> animationsToRemove;
>+    Vector<RefPtr<CSSTransition>> completedTransitions;
>+    for (auto& timeline : protectedTimelines) {
>+        auto shouldUpdateAnimationsAndSendEvents = timeline->documentWillUpdateAnimationsAndSendEvents(timestamp);
>+        if (shouldUpdateAnimationsAndSendEvents == DocumentTimeline::ShouldUpdateAnimationsAndSendEvents::No)
>+            continue;
>+
>+        timelinesToUpdate.append(timeline.get());
>+
>+        for (auto& animation : timeline->relevantAnimations()) {
>+            if (animation->timeline() != timeline.get()) {
>+                ASSERT(!animation->timeline());
>+                animationsToRemove.append(animation);
>+                continue;
>+            }
>+
>+            // This will notify the animation that timing has changed and will call automatically
>+            // schedule invalidation if required for this animation.
>+            animation->tick();
>+
>+            if (!animation->isRelevant() && !animation->needsTick())
>+                animationsToRemove.append(animation);
>+
>+            if (!animation->needsTick() && is<CSSTransition>(animation) && animation->playState() == WebAnimation::PlayState::Finished) {
>+                auto* transition = downcast<CSSTransition>(animation.get());
>+                if (transition->owningElement())
>+                    completedTransitions.append(transition);
>+            }
>+        }
>     }
> 
>-    for (auto& timeline : timelines) {
>-        timeline->updateCurrentTime(timestamp);
>-        if (shouldUpdateAnimations)
>-            timeline->updateAnimationsAndSendEvents();
>+    if (timelinesToUpdate.isEmpty())
>+        return;
>+
>+    // 2. Remove replaced animations for doc.
>+    for (auto& timeline : m_timelines)
>+        timeline.removeReplacedAnimations();
>+
>+    // 3. Perform a microtask checkpoint.
>+    auto document = makeRefPtr(m_document);
>+    document->eventLoop().performMicrotaskCheckpoint();
>+
>+    // 4. Let events to dispatch be a copy of doc's pending animation event queue.
>+    // 5. Clear doc's pending animation event queue.
>+    AnimationEvents events;
>+    for (auto& timeline : timelinesToUpdate)
>+        events.appendVector(timeline->prepareForPendingAnimationEventsDispatch());
>+
>+    // 6. Perform a stable sort of the animation events in events to dispatch as follows.
>+    std::stable_sort(events.begin(), events.end(), [] (const Ref<AnimationEventBase>& lhs, const Ref<AnimationEventBase>& rhs) {
>+        // 1. Sort the events by their scheduled event time such that events that were scheduled to occur earlier, sort before events scheduled to occur later
>+        // and events whose scheduled event time is unresolved sort before events with a resolved scheduled event time.
>+        // 2. Within events with equal scheduled event times, sort by their composite order. FIXME: We don't do this.
>+        if (lhs->timelineTime() && !rhs->timelineTime())
>+            return false;
>+        if (!lhs->timelineTime() && rhs->timelineTime())
>+            return true;
>+        if (!lhs->timelineTime() && !rhs->timelineTime())
>+            return true;
>+        return lhs->timelineTime().value() < rhs->timelineTime().value();
>+    });
>+
>+    // 7. Dispatch each of the events in events to dispatch at their corresponding target using the order established in the previous step.
>+    for (auto& event : events)
>+        event->target()->dispatchEvent(event);
>+
>+    // This will cancel any scheduled invalidation if we end up removing all animations.
>+    for (auto& animation : animationsToRemove) {
>+        // An animation that was initially marked as irrelevant may have changed while we were sending events, so we run the same
>+        // check that we ran to add it to animationsToRemove in the first place.
>+        if (!animation->isRelevant() && !animation->needsTick())
>+            animation->timeline()->removeAnimation(*animation);
>     }
>+
>+    // Now that animations that needed removal have been removed, let's update the list of completed transitions.
>+    // This needs to happen after dealing with the list of animations to remove as the animation may have been
>+    // removed from the list of completed transitions otherwise.
>+    for (auto& completedTransition : completedTransitions)
>+        downcast<DocumentTimeline>(*completedTransition->timeline()).transitionDidComplete(completedTransition);
>+
>+    for (auto& timeline : timelinesToUpdate)
>+        timeline->documentDidUpdateAnimationsAndSendEvents();
> }
> 
> } // namespace WebCore
>diff --git a/Source/WebCore/animation/DocumentTimelinesController.h b/Source/WebCore/animation/DocumentTimelinesController.h
>index b6e30df3e89a8fcf097867dafd0bd419ca922830..c587460e85584a2a0e916bd5fc0bbf2c4f10f71f 100644
>--- a/Source/WebCore/animation/DocumentTimelinesController.h
>+++ b/Source/WebCore/animation/DocumentTimelinesController.h
>@@ -30,12 +30,15 @@
> 
> namespace WebCore {
> 
>+class CSSTransition;
>+class Document;
> class DocumentTimeline;
>+class WebAnimation;
> 
> class DocumentTimelinesController {
>     WTF_MAKE_FAST_ALLOCATED;
> public:
>-    explicit DocumentTimelinesController();
>+    explicit DocumentTimelinesController(Document&);
>     ~DocumentTimelinesController();
> 
>     void addTimeline(DocumentTimeline&);
>@@ -44,8 +47,13 @@ public:
>     void updateAnimationsAndSendEvents(DOMHighResTimeStamp);
> 
> private:
>+    struct AnimationsToProcess {
>+        Vector<RefPtr<WebAnimation>> animationsToRemove;
>+        Vector<RefPtr<CSSTransition>> completedTransitions;
>+    };
>+
>     WeakHashSet<DocumentTimeline> m_timelines;
>+    Document& m_document;
> };
> 
> } // namespace WebCore
>-
>diff --git a/Source/WebCore/animation/WebAnimationTypes.h b/Source/WebCore/animation/WebAnimationTypes.h
>index 36951822d5553f84e380547da500c0081d1cd2cf..3b081d32fd52376c7249f44a45b3ffc9a6d4a576 100644
>--- a/Source/WebCore/animation/WebAnimationTypes.h
>+++ b/Source/WebCore/animation/WebAnimationTypes.h
>@@ -32,6 +32,7 @@
> 
> namespace WebCore {
> 
>+class AnimationEventBase;
> class AnimationList;
> class CSSAnimation;
> class CSSTransition;
>@@ -52,6 +53,7 @@ struct WebAnimationsMarkableDoubleTraits {
> using MarkableDouble = Markable<double, WebAnimationsMarkableDoubleTraits>;
> 
> using AnimationCollection = ListHashSet<RefPtr<WebAnimation>>;
>+using AnimationEvents = Vector<Ref<AnimationEventBase>>;
> using PropertyToTransitionMap = HashMap<CSSPropertyID, RefPtr<CSSTransition>>;
> using CSSAnimationCollection = ListHashSet<RefPtr<CSSAnimation>>;
> 
>diff --git a/Source/WebCore/dom/Document.cpp b/Source/WebCore/dom/Document.cpp
>index d35ac41242f776964bc7b6f6710c7092a8aa9253..1972aed909e097a65b7ea1e4b5f93aba68e94e1e 100644
>--- a/Source/WebCore/dom/Document.cpp
>+++ b/Source/WebCore/dom/Document.cpp
>@@ -8080,7 +8080,7 @@ void Document::setConsoleMessageListener(RefPtr<StringCallback>&& listener)
> DocumentTimelinesController& Document::ensureTimelinesController()
> {
>     if (!m_timelinesController)
>-        m_timelinesController = makeUnique<DocumentTimelinesController>();
>+        m_timelinesController = makeUnique<DocumentTimelinesController>(*this);
>     return *m_timelinesController.get();
> }
> 
>diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
>index 7446578caa473c95d7423c516b987be9bfa781b8..22ca9010f088f239bb1ade0cb1d2b15e1aa2d6d2 100644
>--- a/LayoutTests/ChangeLog
>+++ b/LayoutTests/ChangeLog
>@@ -1,3 +1,15 @@
>+2020-04-22  Antoine Quint  <graouts@apple.com>
>+
>+        [Web Animations] Coordinate "update animations and send events" procedure across multiple timelines
>+        https://bugs.webkit.org/show_bug.cgi?id=202109
>+        <rdar://problem/59470821>
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Remove the flaky expectation for the improved test.
>+
>+        * TestExpectations:
>+
> 2020-04-22  Diego Pino Garcia  <dpino@igalia.com>
> 
>         [GTK] Gardening, update test expectations
>diff --git a/LayoutTests/imported/w3c/ChangeLog b/LayoutTests/imported/w3c/ChangeLog
>index 65c90b19409a0f9005cbc511c6d3db9e271d82b0..d28d9bc76a225eec8737a0897a856a8bfd424116 100644
>--- a/LayoutTests/imported/w3c/ChangeLog
>+++ b/LayoutTests/imported/w3c/ChangeLog
>@@ -1,3 +1,15 @@
>+2020-04-22  Antoine Quint  <graouts@apple.com>
>+
>+        [Web Animations] Coordinate "update animations and send events" procedure across multiple timelines
>+        https://bugs.webkit.org/show_bug.cgi?id=202109
>+        <rdar://problem/59470821>
>+
>+        Reviewed by NOBODY (OOPS!).
>+
>+        Mark a new test as PASS which shows that we correctly perform a single microstask checkpoint when updating multiple timelines.
>+
>+        * web-platform-tests/web-animations/timing-model/timelines/update-and-send-events-expected.txt:
>+
> 2020-04-21  Sergio Villar Senin  <svillar@igalia.com>
> 
>         Import latest changes from web-platform-test/webxr/resources to enable testing in WebKit
>diff --git a/LayoutTests/TestExpectations b/LayoutTests/TestExpectations
>index 4245d22220d8a9930784fd358b05216bf51f88b1..565a3675f16708bb4dff11376c77b23f00f57ff9 100644
>--- a/LayoutTests/TestExpectations
>+++ b/LayoutTests/TestExpectations
>@@ -4064,8 +4064,6 @@ webkit.org/b/207261 [ Debug ] imported/w3c/web-platform-tests/css/css-background
> 
> webkit.org/b/207262 imported/w3c/web-platform-tests/web-animations/timing-model/animations/sync-start-times.html [ Pass ImageOnlyFailure ]
> 
>-webkit.org/b/202109 imported/w3c/web-platform-tests/web-animations/timing-model/timelines/update-and-send-events.html [ Pass Failure ]
>-
> # WebXR is being implemented
> webkit.org/b/208988 imported/w3c/web-platform-tests/webxr [ Skip ]
> 
>diff --git a/LayoutTests/imported/w3c/web-platform-tests/web-animations/timing-model/timelines/update-and-send-events-expected.txt b/LayoutTests/imported/w3c/web-platform-tests/web-animations/timing-model/timelines/update-and-send-events-expected.txt
>index 44e0668fdb84940590c5d1c9e438407dbcd149d2..fba25d1179d7c2765c0659380a9c998e689cd8b7 100644
>--- a/LayoutTests/imported/w3c/web-platform-tests/web-animations/timing-model/timelines/update-and-send-events-expected.txt
>+++ b/LayoutTests/imported/w3c/web-platform-tests/web-animations/timing-model/timelines/update-and-send-events-expected.txt
>@@ -6,5 +6,5 @@ FAIL Sorts cancel events by composite order assert_array_equals: cancel events s
> PASS Queues a cancel event in transitionstart event callback 
> PASS Sorts events for the same transition 
> PASS Playback events with the same timeline retain the order in which they arequeued 
>-FAIL All timelines are updated before running microtasks promise_test: Unhandled rejection with value: object "AbortError: The operation was aborted."
>+PASS All timelines are updated before running microtasks 
>

Flags:

dino: review+

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Attachments on bug 202109: 397182 | 397183