Changes access policy for embedded nodes

mojo/services/view_manager/root_node_manager.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/root_node_manager.h"
 
 #include "base/logging.h"
 #include "mojo/public/cpp/application/application_connection.h"
 #include "mojo/public/interfaces/service_provider/service_provider.mojom.h"
 #include "mojo/services/public/cpp/input_events/input_events_type_converters.h"
@@ skipping 124 matching lines @@
     ConnectionSpecificId creator_id,
     const std::string& url) const {
   for (ConnectionMap::const_iterator i = connection_map_.begin();
        i != connection_map_.end(); ++i) {
     if (i->second->creator_id() == creator_id && i->second->url() == url)
       return i->second;
   }
   return NULL;
 }
 
-ViewManagerServiceImpl* RootNodeManager::GetConnectionWithRoot(
-    const NodeId& id) {
+const ViewManagerServiceImpl* RootNodeManager::GetConnectionWithRoot(
+    const NodeId& id) const {
   for (ConnectionMap::const_iterator i = connection_map_.begin();
        i != connection_map_.end(); ++i) {
     if (i->second->HasRoot(id))
       return i->second;
   }
   return NULL;
 }
 
 void RootNodeManager::DispatchViewInputEventToWindowManager(
     const View* view,
@@ skipping 138 matching lines @@
 }
 
 void RootNodeManager::OnViewInputEvent(const View* view,
                                        const ui::Event* event) {
   DispatchViewInputEventToWindowManager(view, event);
 }
 
 }  // namespace service
 }  // namespace view_manager
 }  // namespace mojo