Pass collected frame timing events to Blink

cc/trees/layer_tree_host_client.h

Index: cc/trees/layer_tree_host_client.h
diff --git a/cc/trees/layer_tree_host_client.h b/cc/trees/layer_tree_host_client.h
index 6b305326ff956827753aa6a2c8415b3e51251afa..bf4cbb089318554d98359fd2f03bbcdcb6310af6 100644
--- a/cc/trees/layer_tree_host_client.h
+++ b/cc/trees/layer_tree_host_client.h
@@ -8,6 +8,7 @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
+#include "cc/debug/frame_timing_tracker.h"
 
 namespace gfx {
 class Vector2d;
@@ -38,6 +39,10 @@ class LayerTreeHostClient {
   virtual void ApplyViewportDeltas(const gfx::Vector2d& scroll_delta,
                                    float page_scale,
                                    float top_controls_delta) = 0;
+  virtual void RecordCompositeTimings(
+      FrameTimingTracker::CompositeTimingSet* composites) = 0;
+  virtual void RecordRenderTimings(
+      FrameTimingTracker::MainFrameTimingSet* renders) = 0;
   // Request an OutputSurface from the client. When the client has one it should
   // call LayerTreeHost::SetOutputSurface.  This will result in either
   // DidFailToInitializeOutputSurface or DidInitializeOutputSurface being