Support mouse lock in Flash fullscreen mode.

content/browser/renderer_host/render_widget_host_impl.cc

Index: content/browser/renderer_host/render_widget_host_impl.cc
diff --git a/content/browser/renderer_host/render_widget_host_impl.cc b/content/browser/renderer_host/render_widget_host_impl.cc
index 2ffb0941f4904d76418a629972dd878487e18442..f4ce9e19d768e25a25f15109fa17d6c65be48c65 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -233,6 +233,8 @@ void RenderWidgetHostImpl::Init() {
 }
 
 void RenderWidgetHostImpl::Shutdown() {
+  RejectMouseLockOrUnlockIfNecessary();
+
   if (process_->HasConnection()) {
     // Tell the renderer object to close.
     bool rv = Send(new ViewMsg_Close(routing_id_));
@@ -1485,7 +1487,7 @@ void RenderWidgetHostImpl::OnMsgDidActivateAcceleratedCompositing(
     view_->OnAcceleratedCompositingStateChange();
 }
 
-void RenderWidgetHostImpl::OnMsgLockMouse(bool user_gesture) {
+void RenderWidgetHostImpl::OnMsgLockMouse(bool user_gesture, bool privileged) {
   if (pending_mouse_lock_request_) {
     Send(new ViewMsg_LockMouse_ACK(routing_id_, false));
     return;
@@ -1495,7 +1497,12 @@ void RenderWidgetHostImpl::OnMsgLockMouse(bool user_gesture) {
   }
 
   pending_mouse_lock_request_ = true;
-  RequestToLockMouse(user_gesture);
+  if (privileged) {

[brettw, 2012/05/29 20:20:09]

Are there security considerations here? I'm not sure if we consider mouse lock
privileged or whether this capability already exists. If this is changing the
capabilities an owned renderer has, you may want to run this by Justin.

+    // Directly approve to lock the mouse.
+    GotResponseToLockMouseRequest(true);
+  } else {
+    RequestToLockMouse(user_gesture);
+  }
 }
 
 void RenderWidgetHostImpl::OnMsgUnlockMouse() {