Makes IViewManager::DeleteNode take the server_change_id

mojo/services/public/interfaces/view_manager/view_manager.mojom

 // 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.
 
 import "../geometry/geometry.mojom"
 import "../input_events/input_events.mojom"
 import "view_manager_constants.mojom"
 
 module mojo.view_manager {
 
@@ skipping 25 matching lines @@
 interface ViewManagerService {
   // Creates a new node with the specified id. It is up to the client to ensure
   // the id is unique to the connection (the id need not be globally unique).
   // Additionally the connection id (embedded in |node_id|) must match that of
   // the connection.
   CreateNode(uint32 node_id) => (bool success);
 
   // Deletes a node. This does not recurse. No hierarchy change notifications
   // are sent as a result of this. Only the connection that created the node can
   // delete it.
-  DeleteNode(uint32 node_id) => (bool success);
+  DeleteNode(uint32 node_id, uint32 change_id) => (bool success);
 
   // Sets the specified bounds of the specified node.
   SetNodeBounds(uint32 node_id, mojo.Rect bounds) => (bool success);
 
   // Reparents a node. See description above class for details of |change_id|.
   // This fails for any of the following reasons:
   // . |server_change_id| is not the expected id.
   // . |parent| or |child| does not identify a valid node.
   // . |child| is an ancestor of |parent|.
   // . |child| is already a child of |parent|.
@@ skipping 118 matching lines @@
   OnNodeViewReplaced(uint32 node, uint32 new_view_id, uint32 old_view_id);
 
   // Invoked when a view is deleted.
   OnViewDeleted(uint32 view);
 
   // Invoked when an event is targeted at the specified view.
   OnViewInputEvent(uint32 view, mojo.Event event) => ();
 };
 
 }