cc: Save correct frame begin time to FrameRateCounter

cc/layer_tree_host_impl.h

 // Copyright 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_LAYER_TREE_HOST_IMPL_H_
 #define CC_LAYER_TREE_HOST_IMPL_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time.h"
@@ skipping 92 matching lines @@
         LayerList willDrawLayers;
         bool containsIncompleteTile;
 
         // RenderPassSink implementation.
         virtual void appendRenderPass(scoped_ptr<RenderPass>) OVERRIDE;
     };
 
     // Virtual for testing.
     virtual void beginCommit();
     virtual void commitComplete();
     virtual void animate(base::TimeTicks monotonicTime, base::Time wallClockTime);

[nduca, 2013/03/13 05:53:28]

should we clarify these to be frameBeginTime as well? They actually are supposed
to be, I think.

[egraether, 2013/03/13 22:26:01]

This naming goes through some files and I'm not sure why this name was chosen.
If you want me to change this, I would rather do it in a separate patch.

     virtual void setVisible(bool);
 
     void manageTiles();
 
     // Returns false if problems occured preparing the frame, and we should try
     // to avoid displaying the frame. If prepareToDraw is called,
     // didDrawAllLayers must also be called, regardless of whether drawLayers is
     // called between the two.
     virtual bool prepareToDraw(FrameData&);
-    virtual void drawLayers(FrameData&);
+    virtual void drawLayers(FrameData&, base::TimeTicks frameBeginTime);
     // Must be called if and only if prepareToDraw was called.
     void didDrawAllLayers(const FrameData&);
 
     // RendererClient implementation
     virtual gfx::Size DeviceViewportSize() const OVERRIDE;
     virtual const LayerTreeSettings& Settings() const OVERRIDE;
     virtual void DidLoseOutputSurface() OVERRIDE;
     virtual void OnSwapBuffersComplete() OVERRIDE;
     virtual void SetFullRootLayerDamage() OVERRIDE;
     virtual void SetManagedMemoryPolicy(const ManagedMemoryPolicy& policy) OVERRIDE;
@@ skipping 235 matching lines @@
     base::TimeTicks m_currentFrameTime;
 
     scoped_ptr<AnimationRegistrar> m_animationRegistrar;
 
     DISALLOW_COPY_AND_ASSIGN(LayerTreeHostImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYER_TREE_HOST_IMPL_H_