Pass collected frame timing events to Blink

cc/debug/frame_timing_tracker.h

Index: cc/debug/frame_timing_tracker.h
diff --git a/cc/debug/frame_timing_tracker.h b/cc/debug/frame_timing_tracker.h
index 3364993197395c32be17c57e32e28445c2136565..693f50995f0ad9de141656fe64ee58d1ed233443 100644
--- a/cc/debug/frame_timing_tracker.h
+++ b/cc/debug/frame_timing_tracker.h
@@ -30,7 +30,7 @@ class CC_EXPORT FrameTimingTracker {
   };
 
   using CompositeTimingSet =
-      base::hash_map<int, std::vector<CompositeTimingEvent>>;
+      base::hash_map<int64_t, std::vector<CompositeTimingEvent>>;
 
   struct CC_EXPORT MainFrameTimingEvent {
     MainFrameTimingEvent(int frame_id,
@@ -44,7 +44,7 @@ class CC_EXPORT FrameTimingTracker {
   };
 
   using MainFrameTimingSet =
-      base::hash_map<int, std::vector<MainFrameTimingEvent>>;
+      base::hash_map<int64_t, std::vector<MainFrameTimingEvent>>;
 
   static scoped_ptr<FrameTimingTracker> Create();