Adding monotonic only API to Blink's animation delegate interface

Source/platform/graphics/GraphicsLayer.h

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. 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
@@ skipping 271 matching lines @@
 
     blink::WebContentLayer* contentLayer() const { return m_layer.get(); }
 
     static void registerContentsLayer(blink::WebLayer*);
     static void unregisterContentsLayer(blink::WebLayer*);
 
     // GraphicsContextPainter implementation.
     virtual void paint(GraphicsContext&, const IntRect& clip) OVERRIDE;
 
     // WebAnimationDelegate implementation.
-    virtual void notifyAnimationStarted(double wallClockTime, double monotonicTime, blink::WebAnimation::TargetProperty) OVERRIDE;
-    virtual void notifyAnimationFinished(double wallClockTime, double monotonicTime, blink::WebAnimation::TargetProperty) OVERRIDE;
+    virtual void notifyAnimationStarted(double monotonicTime, blink::WebAnimation::TargetProperty) OVERRIDE;
+    virtual void notifyAnimationFinished(double monotonicTime, blink::WebAnimation::TargetProperty) OVERRIDE;
 
     // WebLayerScrollClient implementation.
     virtual void didScroll() OVERRIDE;
 
 protected:
     explicit GraphicsLayer(GraphicsLayerClient*);
     // GraphicsLayerFactoryChromium that wants to create a GraphicsLayer need to be friends.
     friend class blink::GraphicsLayerFactoryChromium;
 
     // Exposed for tests.
@@ skipping 98 matching lines @@
 
 
 } // namespace WebCore
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void PLATFORM_EXPORT showGraphicsLayerTree(const WebCore::GraphicsLayer*);
 #endif
 
 #endif // GraphicsLayer_h