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 CONTENT_BROWSER_COMPOSITOR_RESIZE_LOCK_H_
6#define CONTENT_BROWSER_COMPOSITOR_RESIZE_LOCK_H_
7
8#include "base/basictypes.h"
9#include "content/common/content_export.h"
10#include "ui/gfx/size.h"
11
12namespace content {
13
14class CONTENT_EXPORT ResizeLock {
15 public:
16  virtual ~ResizeLock();
17
18  virtual bool GrabDeferredLock();
19  virtual void UnlockCompositor();
20
21  const gfx::Size& expected_size() const { return new_size_; }
22
23 protected:
24  ResizeLock(const gfx::Size new_size, bool defer_compositor_lock);
25
26  virtual void LockCompositor();
27
28 private:
29  gfx::Size new_size_;
30  bool defer_compositor_lock_;
31
32  DISALLOW_COPY_AND_ASSIGN(ResizeLock);
33};
34
35}  // namespace content
36
37#endif  // CONTENT_BROWSER_COMPOSITOR_RESIZE_LOCK_H_
38