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

content/renderer/render_widget_mouse_lock_dispatcher.cc

 // 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.
 
-#include "content/renderer/render_view_mouse_lock_dispatcher.h"
+#include "content/renderer/render_widget_mouse_lock_dispatcher.h"
 
 #include "content/common/view_messages.h"
 #include "content/renderer/render_view_impl.h"
+#include "ipc/ipc_message.h"
 #include "third_party/WebKit/public/web/WebFrame.h"
 #include "third_party/WebKit/public/web/WebUserGestureIndicator.h"
 #include "third_party/WebKit/public/web/WebView.h"
 #include "third_party/WebKit/public/web/WebWidget.h"
 
 using blink::WebUserGestureIndicator;
 
 namespace content {
 
-RenderViewMouseLockDispatcher::RenderViewMouseLockDispatcher(
-    RenderViewImpl* render_view_impl)
-    : RenderViewObserver(render_view_impl),
-      render_view_impl_(render_view_impl) {
-}
+RenderWidgetMouseLockDispatcher::RenderWidgetMouseLockDispatcher(
+    RenderWidget* render_widget)
+    : render_widget_(render_widget) {}
 
-RenderViewMouseLockDispatcher::~RenderViewMouseLockDispatcher() {
-}
+RenderWidgetMouseLockDispatcher::~RenderWidgetMouseLockDispatcher() {}
 
-void RenderViewMouseLockDispatcher::SendLockMouseRequest(
+void RenderWidgetMouseLockDispatcher::SendLockMouseRequest(
     bool unlocked_by_target) {
   bool user_gesture = WebUserGestureIndicator::isProcessingUserGesture();
 
-  Send(new ViewHostMsg_LockMouse(routing_id(), user_gesture, unlocked_by_target,
-                                 false));
+  render_widget_->Send(new ViewHostMsg_LockMouse(
+      render_widget_->routing_id(), user_gesture, unlocked_by_target, false));
 }
 
-void RenderViewMouseLockDispatcher::SendUnlockMouseRequest() {
-  Send(new ViewHostMsg_UnlockMouse(routing_id()));
+void RenderWidgetMouseLockDispatcher::SendUnlockMouseRequest() {
+  render_widget_->Send(
+      new ViewHostMsg_UnlockMouse(render_widget_->routing_id()));
 }
 
-bool RenderViewMouseLockDispatcher::OnMessageReceived(
+bool RenderWidgetMouseLockDispatcher::OnMessageReceived(
     const IPC::Message& message) {
   bool handled = true;
-  IPC_BEGIN_MESSAGE_MAP(RenderViewMouseLockDispatcher, message)
+  IPC_BEGIN_MESSAGE_MAP(RenderWidgetMouseLockDispatcher, message)
     IPC_MESSAGE_HANDLER(ViewMsg_LockMouse_ACK, OnLockMouseACK)
     IPC_MESSAGE_FORWARD(ViewMsg_MouseLockLost,
                         static_cast<MouseLockDispatcher*>(this),
                         MouseLockDispatcher::OnMouseLockLost)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
-void RenderViewMouseLockDispatcher::OnLockMouseACK(bool succeeded) {
+void RenderWidgetMouseLockDispatcher::OnLockMouseACK(bool succeeded) {
   // Notify the base class.
   MouseLockDispatcher::OnLockMouseACK(succeeded);
 
   // Mouse Lock removes the system cursor and provides all mouse motion as
   // .movementX/Y values on events all sent to a fixed target. This requires
   // content to specifically request the mode to be entered.
   // Mouse Capture is implicitly given for the duration of a drag event, and
   // sends all mouse events to the initial target of the drag.
   // If Lock is entered it supercedes any in progress Capture.
-  if (succeeded && render_view_impl_->GetWidget()->webwidget())
-    render_view_impl_->GetWidget()->webwidget()->mouseCaptureLost();
+  if (succeeded && render_widget_->webwidget())
+    render_widget_->webwidget()->mouseCaptureLost();
 }
 
 }  // namespace content