Update from https://crrev.com/303153

cc/debug/paint_time_counter.h

 // Copyright 2013 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 CC_DEBUG_PAINT_TIME_COUNTER_H_
 #define CC_DEBUG_PAINT_TIME_COUNTER_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/time/time.h"
@@ skipping 18 matching lines @@
   void ClearHistory();
 
   typedef RingBuffer<base::TimeDelta, 200> RingBufferType;
   RingBufferType::Iterator Begin() const { return ring_buffer_.Begin(); }
   RingBufferType::Iterator End() const { return ring_buffer_.End(); }
 
  private:
   PaintTimeCounter();
 
   RingBufferType ring_buffer_;
-  base::TimeDelta last_total_paint_time_;
-  bool can_save_paint_time_delta_;
 
   DISALLOW_COPY_AND_ASSIGN(PaintTimeCounter);
 };
 
 }  // namespace cc
 
 #endif  // CC_DEBUG_PAINT_TIME_COUNTER_H_