Delete CC.

cc/debug/frame_timing_tracker.h

-// Copyright 2015 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_FRAME_TIMING_TRACKER_H_
-#define CC_DEBUG_FRAME_TIMING_TRACKER_H_
-
-#include <utility>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/containers/hash_tables.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/time/time.h"
-
-namespace cc {
-
-// This class maintains a history of timestamps and rect IDs to communicate
-// frame events back to Blink
-// TODO(mpb): Start using this. crbug.com/442554
-class FrameTimingTracker {
- public:
-  struct CompositeTimingEvent {
-    CompositeTimingEvent(int, base::TimeTicks);
-    ~CompositeTimingEvent();
-
-    int frame_id;
-    base::TimeTicks timestamp;
-  };
-
-  using CompositeTimingSet =
-      base::hash_map<int, std::vector<CompositeTimingEvent>>;
-
-  static scoped_ptr<FrameTimingTracker> Create();
-
-  ~FrameTimingTracker();
-
-  // This routine takes all of the individual CompositeEvents stored in the
-  // tracker and collects them by "rect_id", as in the example below.
-  // [ {f_id1,r_id1,t1}, {f_id2,r_id1,t2}, {f_id3,r_id2,t3} ]
-  // ====>
-  // [ {r_id1,<{f_id1,t1},{f_id2,t2}>}, {r_id2,<{f_id3,t3}>} ]
-  scoped_ptr<CompositeTimingSet> GroupCountsByRectId();
-
-  // This routine takes a timestamp and an array of frame_id,rect_id pairs
-  // and generates CompositeTimingEvents (frame_id, timestamp) and adds them to
-  // internal hash_map keyed on rect_id
-  using FrameAndRectIds = std::pair<int, int64_t>;
-  void SaveTimeStamps(base::TimeTicks timestamp,
-                      const std::vector<FrameAndRectIds>& frame_ids);
-
- private:
-  FrameTimingTracker();
-
-  scoped_ptr<CompositeTimingSet> composite_events_;
-
-  DISALLOW_COPY_AND_ASSIGN(FrameTimingTracker);
-};
-
-}  // namespace cc
-
-#endif  // CC_DEBUG_FRAME_TIMING_TRACKER_H_