cc: add rasterize time to continuous painting graph data in impl-side-painting

cc/paint_time_counter.h

Index: cc/paint_time_counter.h
diff --git a/cc/paint_time_counter.h b/cc/paint_time_counter.h
index 171f6dd8748ca82cdee4596a6302da0fb7abe5c0..ebdc19b11c887482eee92e455aa24b56e9523162 100644
--- a/cc/paint_time_counter.h
+++ b/cc/paint_time_counter.h
@@ -23,7 +23,8 @@ class PaintTimeCounter {
   // n = PaintTimeHistorySize() - 1 the most recent paint time.
   base::TimeDelta GetPaintTimeOfRecentFrame(const size_t& n) const;
 
-  void SavePaintTime(const base::TimeDelta& total_paint_time);
+  void SavePaintTime(const base::TimeDelta& total_paint_time,
+                     const int& frame_number);
   void GetMinAndMaxPaintTime(base::TimeDelta* min, base::TimeDelta* max) const;
 
  private:
@@ -31,6 +32,7 @@ class PaintTimeCounter {
 
   RingBuffer<base::TimeDelta, 80> ring_buffer_;
   base::TimeDelta last_total_paint_time_;
+  int last_frame_number;
 
   DISALLOW_COPY_AND_ASSIGN(PaintTimeCounter);
 };