Make the web-animations engine use the passed in blink::WebFrameTime values.

Source/core/dom/ScriptedAnimationController.cpp

 /*
  * Copyright (C) 2011 Google 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
@@ skipping 121 matching lines @@
         // FIXME: We should not fire events for nodes that are no longer in the tree.
         if (LocalDOMWindow* window = eventTarget->toDOMWindow())
             window->dispatchEvent(events[i], nullptr);
         else
             eventTarget->dispatchEvent(events[i]);
 
         InspectorInstrumentation::didRemoveEvent(eventTarget, events[i].get());
     }
 }
 
-void ScriptedAnimationController::executeCallbacks(double monotonicTimeNow)
+void ScriptedAnimationController::executeCallbacks(blink::WebFrameTime frameTime)
 {
     // dispatchEvents() runs script which can cause the document to be destroyed.
     if (!m_document)
         return;
 
-    double highResNowMs = 1000.0 * m_document->loader()->timing()->monotonicTimeToZeroBasedDocumentTime(monotonicTimeNow);
-    double legacyHighResNowMs = 1000.0 * m_document->loader()->timing()->monotonicTimeToPseudoWallTime(monotonicTimeNow);
+    double highResNowMs = 1000.0 * m_document->loader()->timing()->monotonicTimeToZeroBasedDocumentTime(frameTime.lastFrameTime);

[jamesr, 2014/07/08 05:00:35]

... and this value do not appear to be the same to me.

+    double legacyHighResNowMs = 1000.0 * m_document->loader()->timing()->monotonicTimeToPseudoWallTime(frameTime.lastFrameTime);
 
     // First, generate a list of callbacks to consider.  Callbacks registered from this point
     // on are considered only for the "next" frame, not this one.
     ASSERT(m_callbacksToInvoke.isEmpty());
     m_callbacksToInvoke.swap(m_callbacks);
 
     for (size_t i = 0; i < m_callbacksToInvoke.size(); ++i) {
         RequestAnimationFrameCallback* callback = m_callbacksToInvoke[i].get();
         if (!callback->m_cancelled) {
             TRACE_EVENT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"), "FireAnimationFrame", "data", InspectorAnimationFrameEvent::data(m_document, callback->m_id));
@@ skipping 15 matching lines @@
 {
     MediaQueryListListeners listeners;
     listeners.swap(m_mediaQueryListListeners);
 
     for (MediaQueryListListeners::const_iterator it = listeners.begin(), end = listeners.end();
         it != end; ++it) {
         (*it)->call();
     }
 }
 
-void ScriptedAnimationController::serviceScriptedAnimations(double monotonicTimeNow)
+void ScriptedAnimationController::serviceScriptedAnimations(blink::WebFrameTime frameTime)
 {
     if (!m_callbacks.size() && !m_eventQueue.size() && !m_mediaQueryListListeners.size())
         return;
 
     if (m_suspendCount)
         return;
 
     RefPtrWillBeRawPtr<ScriptedAnimationController> protect(this);
 
     callMediaQueryListListeners();
     dispatchEvents();
-    executeCallbacks(monotonicTimeNow);
+    executeCallbacks(frameTime);
 
     scheduleAnimationIfNeeded();
 }
 
 void ScriptedAnimationController::enqueueEvent(PassRefPtrWillBeRawPtr<Event> event)
 {
     InspectorInstrumentation::didEnqueueEvent(event->target(), event.get());
     m_eventQueue.append(event);
     scheduleAnimationIfNeeded();
 }
@@ skipping 22 matching lines @@
         return;
 
     if (!m_callbacks.size() && !m_eventQueue.size() && !m_mediaQueryListListeners.size())
         return;
 
     if (FrameView* frameView = m_document->view())
         frameView->scheduleAnimation();
 }
 
 }