1// Copyright 2013 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#include "base/compiler_specific.h"
6#include "cc/base/swap_promise_monitor.h"
7
8#ifndef CC_BASE_LATENCY_INFO_SWAP_PROMISE_MONITOR_H_
9#define CC_BASE_LATENCY_INFO_SWAP_PROMISE_MONITOR_H_
10
11namespace ui {
12struct LatencyInfo;
13}  // namespace ui
14
15namespace cc {
16
17// A LatencyInfoSwapPromiseMonitor queues a LatencyInfoSwapPromise into
18// LayerTreeHost or LayerTreeHostImpl if there is compositor state change
19// while it is being mointored.
20class CC_EXPORT LatencyInfoSwapPromiseMonitor : public SwapPromiseMonitor {
21 public:
22  LatencyInfoSwapPromiseMonitor(ui::LatencyInfo* latency,
23                                LayerTreeHost* layer_tree_host,
24                                LayerTreeHostImpl* layer_tree_host_impl);
25  virtual ~LatencyInfoSwapPromiseMonitor();
26
27  virtual void OnSetNeedsCommitOnMain() OVERRIDE;
28  virtual void OnSetNeedsRedrawOnImpl() OVERRIDE;
29  virtual void OnForwardScrollUpdateToMainThreadOnImpl() OVERRIDE;
30
31 private:
32  ui::LatencyInfo* latency_;
33};
34
35}  // namespace cc
36
37#endif  // CC_BASE_LATENCY_INFO_SWAP_PROMISE_MONITOR_H_
38