Pass embedding app identity through at embed time

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"
 
 module mojo.view_manager {
 
 struct INode {
@@ skipping 98 matching lines @@
 // Changes to nodes/views are not sent to the connection that originated the
 // change. For example, if connection 1 attaches a view to a node (SetView())
 // connection 1 does not receive OnNodeViewReplaced().
 [Client=IViewManager]
 interface IViewManagerClient {
   // Invoked once the connection has been established. |connection_id| is the id
   // that uniquely identifies this connection. |next_server_change_id| is the
   // id of the next change the server is expecting. |nodes| are the nodes
   // parented to the root.
   OnViewManagerConnectionEstablished(uint16 connection_id,
+                                     string creator_url,
                                      uint32 next_server_change_id,
                                      INode[] nodes);
 
   // See description of IViewManager::Connect() for details as to when this is
   // invoked.
   OnRootsAdded(INode[] nodes);
 
   // This is sent to clients when a change is made to the server that results
   // in the |server_change_id| changing but the client isn't notified. This is
   // not sent if the client receives a callback giving a new
@@ skipping 25 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) => ();
 };
 
 }