Add EmbedRoot to ViewManagerService.

mojo/services/view_manager/view_manager_service_impl.cc

 // Copyright 2014 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 "mojo/services/view_manager/view_manager_service_impl.h"
 
 #include "base/bind.h"
 #include "mojo/services/public/cpp/geometry/geometry_type_converters.h"
 #include "mojo/services/public/cpp/input_events/input_events_type_converters.h"
 #include "mojo/services/view_manager/node.h"
@@ skipping 735 matching lines @@
         connection_by_url->AddRoot(node_id);
       else
         root_node_manager_->Embed(id_, url, transport_node_id);
     } else {
       success = false;
     }
   }
   callback.Run(success);
 }
 
+void ViewManagerServiceImpl::EmbedRoot(const String& url,
+                                       const Callback<void(bool)>& callback) {
+  root_node_manager_->EmbedRoot(url);
+  callback.Run(true);
+}
+
 void ViewManagerServiceImpl::DispatchOnViewInputEvent(Id transport_view_id,
                                                       EventPtr event) {
   // We only allow the WM to dispatch events. At some point this function will
   // move to a separate interface and the check can go away.
   if (id_ != kWindowManagerConnection)
     return;
 
   const ViewId view_id(ViewIdFromTransportId(transport_view_id));
   ViewManagerServiceImpl* connection = root_node_manager_->GetConnection(
       view_id.connection_id);
@@ skipping 18 matching lines @@
 
   client()->OnViewManagerConnectionEstablished(
       id_,
       creator_url_,
       NodesToNodeDatas(to_send));
 }
 
 }  // namespace service
 }  // namespace view_manager
 }  // namespace mojo