cc: Save correct frame begin time to FrameRateCounter

cc/single_thread_proxy.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_SINGLE_THREAD_PROXY_H_
 #define CC_SINGLE_THREAD_PROXY_H_
 
 #include <limits>
 
 #include "base/time.h"
@@ skipping 57 matching lines @@
       base::Time wall_clock_time) OVERRIDE;
   virtual bool ReduceContentsTextureMemoryOnImplThread(
       size_t limit_bytes,
       int priority_cutoff) OVERRIDE;
   virtual void ReduceWastedContentsTextureMemoryOnImplThread() OVERRIDE;
   virtual void SendManagedMemoryStats() OVERRIDE;
   virtual bool IsInsideDraw() OVERRIDE;
   virtual void RenewTreePriority() OVERRIDE {}
 
   // Called by the legacy path where RenderWidget does the scheduling.
-  void CompositeImmediately();
+  void CompositeImmediately(base::TimeTicks frame_begin_time);
 
  private:
   explicit SingleThreadProxy(LayerTreeHost* layer_tree_host);
 
-  bool CommitAndComposite();
+  bool CommitAndComposite(base::TimeTicks frame_begin_time);
   void DoCommit(scoped_ptr<ResourceUpdateQueue> queue);
   bool DoComposite(
-      scoped_refptr<cc::ContextProvider> offscreen_context_provider);
+      scoped_refptr<cc::ContextProvider> offscreen_context_provider,
+      base::TimeTicks frame_begin_time);
   void DidSwapFrame();
 
   // Accessed on main thread only.
   LayerTreeHost* layer_tree_host_;
   bool output_surface_lost_;
   bool created_offscreen_context_provider;
 
   // Holds on to the context between initializeContext() and
   // InitializeRenderer() calls. Shouldn't be used for anything else.
   scoped_ptr<OutputSurface> output_surface_before_initialization_;
@@ skipping 71 matching lines @@
  private:
   DebugScopedSetImplThread impl_thread_;
   DebugScopedSetMainThreadBlocked main_thread_blocked_;
 
   DISALLOW_COPY_AND_ASSIGN(DebugScopedSetImplThreadAndMainThreadBlocked);
 };
 
 }  // namespace cc
 
 #endif  // CC_SINGLE_THREAD_PROXY_H_