Filter more incoming URLs in the CreateWindow path.

BUG=170532

Review URL: https://chromiumcodereview.appspot.com/12036002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@178728 0039d316-1c4b-4281-b951-d872f2087c98
void RenderViewHostImpl::OnTargetDropACK() {
  NotificationService::current()->Notify(
      NOTIFICATION_RENDER_VIEW_HOST_DID_RECEIVE_DRAG_TARGET_DROP_ACK,
      Source<RenderViewHost>(this),
      NotificationService::NoDetails());
}

void RenderViewHostImpl::OnTargetDropACK() {
  NotificationService::current()->Notify(
      NOTIFICATION_RENDER_VIEW_HOST_DID_RECEIVE_DRAG_TARGET_DROP_ACK,
      Source<RenderViewHost>(this),
      NotificationService::NoDetails());
}
