Revert 268218 "Add support for mapping node tree on the client."

trunk/src/mojo/services/public/cpp/view_manager/lib/view_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/public/cpp/view_manager/view_manager.h"
 
 #include "mojo/services/public/cpp/view_manager/lib/view_manager_synchronizer.h"
 
 namespace mojo {
 namespace services {
 namespace view_manager {
 
 ViewManager::ViewManager(Shell* shell)
     : shell_(shell),
       synchronizer_(new ViewManagerSynchronizer(this)) {}
 ViewManager::~ViewManager() {}
 
-void ViewManager::BuildNodeTree(const mojo::Callback<void()>& callback) {
-  synchronizer_->BuildNodeTree(callback);
-}
-
-void ViewManager::AddObserver(ViewManagerObserver* observer) {
-  observers_.AddObserver(observer);
-}
-
-void ViewManager::RemoveObserver(ViewManagerObserver* observer) {
-  observers_.RemoveObserver(observer);
-}
-
 }  // namespace view_manager
 }  // namespace services
 }  // namespace mojo