Merge 112360 - [chromium] Route monotonic clock up from compositor

Source/Platform/chromium/public/WebLayerTreeViewClient.h

 /*
  * 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
@@ skipping 24 matching lines @@
 public:
     // Indicates to the embedder that the compositor is about to begin a
     // frame. This is is a signal to flow control mechanisms that a frame is
     // beginning. This call will be followed by updateAnimations and then
     // layout, which should be used for actual animation or tree manipulation
     // tasks.  FIXME: make pure virtual once upstream deps are satisfied.
     virtual void willBeginFrame() { }
 
     // Updates animation and layout. These are called before the compositing
     // pass so that layers can be updated at the given frame time.
-    virtual void updateAnimations(double frameBeginTime) = 0;
+    virtual void updateAnimations(double monotonicFrameBeginTime) = 0;
     virtual void layout() = 0;
 
     // Applies a scroll delta to the root layer, which is bundled with a page
     // scale factor that may apply a CSS transform on the whole document (used
     // for mobile-device pinch zooming). This is triggered by events sent to the
     // compositor thread through the WebCompositor interface.
     virtual void applyScrollAndScale(const WebSize& scrollDelta, float scaleFactor) = 0;
 
     // Creates a 3D context suitable for the compositing. This may be called
     // more than once if the context gets lost.
@@ skipping 23 matching lines @@
     // internally schedule a compositing pass when needed.
     virtual void scheduleComposite() = 0;
 
 protected:
     virtual ~WebLayerTreeViewClient() { }
 };
 
 } // namespace WebKit
 
 #endif // WebLayerTreeViewClient_h