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

Source/core/dom/ScriptedAnimationController.cpp

Index: Source/core/dom/ScriptedAnimationController.cpp
diff --git a/Source/core/dom/ScriptedAnimationController.cpp b/Source/core/dom/ScriptedAnimationController.cpp
index f8f6b3b9414a4367be2921e6966a2e2b382d8bdb..60f82b36e5a9ab34048bc5d52aa77e6d51c4d6bb 100644
--- a/Source/core/dom/ScriptedAnimationController.cpp
+++ b/Source/core/dom/ScriptedAnimationController.cpp
@@ -139,14 +139,14 @@ void ScriptedAnimationController::dispatchEvents()
     }
 }
 
-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.
@@ -182,7 +182,7 @@ void ScriptedAnimationController::callMediaQueryListListeners()
     }
 }
 
-void ScriptedAnimationController::serviceScriptedAnimations(double monotonicTimeNow)
+void ScriptedAnimationController::serviceScriptedAnimations(blink::WebFrameTime frameTime)
 {
     if (!m_callbacks.size() && !m_eventQueue.size() && !m_mediaQueryListListeners.size())
         return;
@@ -194,7 +194,7 @@ void ScriptedAnimationController::serviceScriptedAnimations(double monotonicTime
 
     callMediaQueryListListeners();
     dispatchEvents();
-    executeCallbacks(monotonicTimeNow);
+    executeCallbacks(frameTime);
 
     scheduleAnimationIfNeeded();
 }