Deletion/ownership

mojo/services/public/cpp/view_manager/lib/view_manager_private.cc

Index: mojo/services/public/cpp/view_manager/lib/view_manager_private.cc
diff --git a/mojo/services/public/cpp/view_manager/lib/view_manager_private.cc b/mojo/services/public/cpp/view_manager/lib/view_manager_private.cc
index bcd454235525e87519b0b9064a9c03b659790fa0..bf08b396e0fe4bde4ad4556e516ca139b67980f8 100644
--- a/mojo/services/public/cpp/view_manager/lib/view_manager_private.cc
+++ b/mojo/services/public/cpp/view_manager/lib/view_manager_private.cc
@@ -12,8 +12,14 @@ ViewManagerPrivate::ViewManagerPrivate(ViewManager* manager)
     : manager_(manager) {}
 ViewManagerPrivate::~ViewManagerPrivate() {}
 
-void ViewManagerPrivate::SetRoot(ViewTreeNode* root) {
-  manager_->tree_.reset(root);
+void ViewManagerPrivate::AddNode(TransportNodeId node_id, ViewTreeNode* node) {
+  manager_->nodes_[node_id] = node;
+}
+
+void ViewManagerPrivate::RemoveNode(TransportNodeId node_id) {
+  ViewManager::IdToNodeMap::iterator it = manager_->nodes_.find(node_id);
+  if (it != manager_->nodes_.end())
+    manager_->nodes_.erase(it);
 }
 
 }  // namespace view_manager