Makes Embed() take a single node

mojo/services/public/cpp/view_manager/lib/view_manager_client_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/public/cpp/view_manager/lib/view_manager_client_impl.h"
 
 #include "base/bind.h"
 #include "base/message_loop/message_loop.h"
 #include "mojo/public/cpp/application/application_connection.h"
 #include "mojo/public/cpp/application/connect.h"
@@ skipping 460 matching lines @@
                    Id node_id,
                    ViewManagerClientImpl* client)
       : ViewManagerTransaction(client),
         url_(url),
         node_id_(node_id) {}
   virtual ~EmbedTransaction() {}
 
  private:
   // Overridden from ViewManagerTransaction:
   virtual void DoCommit() OVERRIDE {
-    std::vector<Id> ids;
-    ids.push_back(node_id_);
-    service()->Embed(url_, Array<Id>::From(ids), ActionCompletedCallback());
+    service()->Embed(url_, node_id_, ActionCompletedCallback());
   }
   virtual void DoActionCompleted(bool success) OVERRIDE {
     // TODO(beng): recovery?
   }
 
   const String url_;
   const Id node_id_;
 
   DISALLOW_COPY_AND_ASSIGN(EmbedTransaction);
 };
@@ skipping 244 matching lines @@
     Array<NodeDataPtr> nodes) {
   connected_ = true;
   connection_id_ = connection_id;
   creator_url_ = TypeConverter<String, std::string>::ConvertFrom(creator_url);
   next_server_change_id_ = next_server_change_id;
 
   DCHECK(pending_transactions_.empty());
   AddRoot(BuildNodeTree(this, nodes));
 }
 
-void ViewManagerClientImpl::OnRootsAdded(Array<NodeDataPtr> nodes) {
+void ViewManagerClientImpl::OnRootAdded(Array<NodeDataPtr> nodes) {
   AddRoot(BuildNodeTree(this, nodes));
 }
 
 void ViewManagerClientImpl::OnServerChangeIdAdvanced(
     Id next_server_change_id) {
   next_server_change_id_ = next_server_change_id;
 }
 
 void ViewManagerClientImpl::OnNodeBoundsChanged(Id node_id,
                                                 RectPtr old_bounds,
@@ skipping 151 matching lines @@
 
 // static
 void ViewManager::ConfigureIncomingConnection(
     ApplicationConnection* connection,
     ViewManagerDelegate* delegate) {
   connection->AddService<ViewManagerClientImpl>(delegate);
 }
 
 }  // namespace view_manager
 }  // namespace mojo