[WIP] cc: Plumb frame timing info without using a commit.

ui/compositor/compositor.h

 // Copyright (c) 2012 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 UI_COMPOSITOR_COMPOSITOR_H_
 #define UI_COMPOSITOR_COMPOSITOR_H_
 
 #include <list>
 #include <string>
 
@@ skipping 281 matching lines @@
                            float top_controls_delta) override {}
   void RequestNewOutputSurface() override;
   void DidInitializeOutputSurface() override;
   void DidFailToInitializeOutputSurface() override;
   void WillCommit() override {}
   void DidCommit() override;
   void DidCommitAndDrawFrame() override;
   void DidCompleteSwapBuffers() override;
   void DidCompletePageScaleAnimation() override {}
   void SendBeginFramesToChildren(const cc::BeginFrameArgs& args) override;
+  void RecordFrameTimingEvents(
+      scoped_ptr<cc::FrameTimingTracker::CompositeTimingSet> composite_events,
+      scoped_ptr<cc::FrameTimingTracker::MainFrameTimingSet> main_frame_events)
+      override {}
 
   // cc::LayerTreeHostSingleThreadClient implementation.
   void DidPostSwapBuffers() override;
   void DidAbortSwapBuffers() override;
 
   bool IsLocked() { return compositor_lock_ != NULL; }
 
   const cc::LayerTreeDebugState& GetLayerTreeDebugState() const;
   void SetLayerTreeDebugState(const cc::LayerTreeDebugState& debug_state);
   const cc::RendererSettings& GetRendererSettings() const;
@@ skipping 52 matching lines @@
   cc::BeginFrameArgs missed_begin_frame_args_;
 
   base::WeakPtrFactory<Compositor> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Compositor);
 };
 
 }  // namespace ui
 
 #endif  // UI_COMPOSITOR_COMPOSITOR_H_