Remove current implementation of frame timing events.

cc/debug/frame_timing_request.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_REQUEST_H_
-#define CC_DEBUG_FRAME_TIMING_REQUEST_H_
-
-#include <stdint.h>
-
-#include "cc/base/cc_export.h"
-#include "ui/gfx/geometry/rect.h"
-
-namespace cc {
-
-// This class represents a request to record frame timing information about the
-// given rect (in layer space) and an associated request id. When this request
-// is propagated to the active LayerImpl, it will cause events to be saved in
-// FrameTimingTracker, which in turn can be consumed by the requester.
-class CC_EXPORT FrameTimingRequest {
- public:
-  FrameTimingRequest();
-  FrameTimingRequest(int64_t request_id, const gfx::Rect& rect);
-
-  // Return the ID for the request.
-  int64_t id() const { return id_; }
-
-  // Return the layer space rect for this request.
-  const gfx::Rect& rect() const { return rect_; }
-
-  bool operator==(const FrameTimingRequest& other) const {
-    return (id_ == other.id_) && (rect_ == other.rect_);
-  }
-
- private:
-  int64_t id_;
-  gfx::Rect rect_;
-};
-
-}  // namespace cc
-
-#endif  // CC_DEBUG_FRAME_TIMING_REQUEST_H_