cc/trees/proxy_timing_history.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CC_TREES_PROXY_TIMING_HISTORY_H_
   6 #define CC_TREES_PROXY_TIMING_HISTORY_H_
   7
   8 #include "cc/base/rolling_time_delta_history.h"
   9
  10 namespace cc {
  11
  12 class ProxyTimingHistory {
  13  public:
  14   ProxyTimingHistory();
  15   ~ProxyTimingHistory();
  16
  17   base::TimeDelta DrawDurationEstimate() const;
  18   base::TimeDelta BeginMainFrameToCommitDurationEstimate() const;
  19   base::TimeDelta CommitToActivateDurationEstimate() const;
  20
  21   void DidBeginMainFrame();
  22   void DidCommit();
  23   void DidActivateSyncTree();
  24   void DidStartDrawing();
  25   // Returns draw duration.
  26   base::TimeDelta DidFinishDrawing();
  27
  28  protected:
  29   RollingTimeDeltaHistory draw_duration_history_;
  30   RollingTimeDeltaHistory begin_main_frame_to_commit_duration_history_;
  31   RollingTimeDeltaHistory commit_to_activate_duration_history_;
  32
  33   base::TimeTicks begin_main_frame_sent_time_;
  34   base::TimeTicks commit_complete_time_;
  35   base::TimeTicks start_draw_time_;
  36 };
  37
  38 }  // namespace cc
  39
  40 #endif  // CC_TREES_PROXY_TIMING_HISTORY_H_