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 d79db69e675dd1dd1353cc39dfd65f37beeb0a89..b110fc89e468f41d873acc4048d4858ccc980911 100644
--- a/cc/paint_time_counter.h
+++ b/cc/paint_time_counter.h
@@ -19,18 +19,41 @@ class PaintTimeCounter {
 
   size_t HistorySize() const { return ring_buffer_.BufferSize(); }
 
+  struct Entry {
+    Entry()
+        : commit_number(0) { }
+
+    int commit_number;
+    base::TimeDelta paint_time;
+    base::TimeDelta rasterize_time;
+
+    base::TimeDelta total_time() const {
+      return paint_time + rasterize_time;
+    }
+  };
+
   // n = 0 returns the oldest and
   // 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,
+                     int commit_number);
+  void SaveRasterizeTime(const base::TimeDelta& total_rasterize_time,
+                         int commit_number);
   void GetMinAndMaxPaintTime(base::TimeDelta* min, base::TimeDelta* max) const;
 
+  void ClearHistory();
+
  private:
   PaintTimeCounter();
 
-  RingBuffer<base::TimeDelta, 90> ring_buffer_;
+  RingBuffer<Entry, 90> ring_buffer_;
+
   base::TimeDelta last_total_paint_time_;
+  base::TimeDelta last_total_rasterize_time_;
+
+  bool can_save_paint_time_delta_;
+  bool can_save_rasterize_time_delta_;
 
   DISALLOW_COPY_AND_ASSIGN(PaintTimeCounter);
 };