Deletion/ownership

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"
+#include "mojo/services/public/cpp/view_manager/lib/view_tree_node_private.h"
 
 namespace mojo {
 namespace services {
 namespace view_manager {
 
 ViewManager::ViewManager(Shell* shell)
     : shell_(shell) {}
 
-ViewManager::~ViewManager() {}
+ViewManager::~ViewManager() {
+  while (!nodes_.empty()) {
+    IdToNodeMap::iterator it = nodes_.begin();
+    if (synchronizer_->OwnsNode(it->second->id()))
+      it->second->Destroy();
+    else
+      nodes_.erase(it);
+  }
+}
 
 void ViewManager::Init() {
   synchronizer_.reset(new ViewManagerSynchronizer(this));
 }
 
+ViewTreeNode* ViewManager::GetNodeById(TransportNodeId id) {
+  IdToNodeMap::const_iterator it = nodes_.find(id);
+  return it != nodes_.end() ? it->second : NULL;
+}
+
 }  // namespace view_manager
 }  // namespace services
 }  // namespace mojo