Implement pointer lock API for out-of-process iframes.

content/renderer/render_view_mouse_lock_dispatcher.h

-// Copyright (c) 2012 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 CONTENT_RENDERER_RENDER_VIEW_MOUSE_LOCK_DISPATCHER_H_
-#define CONTENT_RENDERER_RENDER_VIEW_MOUSE_LOCK_DISPATCHER_H_
-
-#include "base/compiler_specific.h"
-#include "base/macros.h"
-#include "content/public/renderer/render_view_observer.h"
-#include "content/renderer/mouse_lock_dispatcher.h"
-
-namespace content {
-class RenderViewImpl;
-
-// RenderViewMouseLockDispatcher is owned by RenderViewImpl.
-class RenderViewMouseLockDispatcher : public MouseLockDispatcher,
-                                      public RenderViewObserver {
- public:
-  explicit RenderViewMouseLockDispatcher(RenderViewImpl* render_view_impl);
-  ~RenderViewMouseLockDispatcher() override;
-
- private:
-  // MouseLockDispatcher implementation.
-  void SendLockMouseRequest(bool unlocked_by_target) override;
-  void SendUnlockMouseRequest() override;
-
-  // RenderView::Observer implementation.
-  bool OnMessageReceived(const IPC::Message& message) override;
-
-  void OnLockMouseACK(bool succeeded);
-
-  RenderViewImpl* render_view_impl_;
-
-  DISALLOW_COPY_AND_ASSIGN(RenderViewMouseLockDispatcher);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_RENDERER_RENDER_VIEW_MOUSE_LOCK_DISPATCHER_H_