Add a user id parameter to connections

mojo/shell/public/interfaces/shell_client.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.
 
 module mojo.shell.mojom;
 
 import "mojo/shell/public/interfaces/interface_provider.mojom";
 import "mojo/shell/public/interfaces/shell.mojom";
 
 // TODO(beng): rewrite these comments.
@@ skipping 10 matching lines @@
   //
   // The |url| parameter is the identity of the application as far as the shell
   // is concerned. This will be the URL the application was found at, after all
   // mappings, resolution, and redirects. And it will not include the
   // querystring, since the querystring is not part of an application's
   // identity.
   // 
   // The |id| parameter is the identifier of the instance in the
   // ApplicationManager. It can be passed to other shell interfaces that request
   // an instance identifier.
-  Initialize(Shell shell, string url, uint32 id);
+  Initialize(Shell shell, string url, uint32 id, uint32 user_id);

[sky, 2016/02/23 21:15:13]

Please add more comments as to what the ids mean.

 
   // Called when another application (identified by |requestor_url|) attempts to
   // open a connection to this application.
   //
   // If the other application wants to request services from this application,
   // it will have passed a valid interface request through the |services|
   // parameter (i.e. one containing a valid message pipe endpoint). This
   // application may then bind an implementation of |InterfaceProvider| to that
   // request in order to make services available to the other application.
   //
@@ skipping 15 matching lines @@
   // no services to the connecting application. When this parameter contains
   // only the single string value "*" the application may expose all of its
   // services to the connecting application.
   //
   // |resolved_url| is the URL that was requested to create this connection,
   // after all mappings, resolutions, and redirects. This will include any
   // querystring that was part of the request.
   //
   AcceptConnection(string requestor_url,
                    uint32 requestor_id,
+                   uint32 requestor_user_id,
                    InterfaceProvider&? local_interfaces,
                    InterfaceProvider? remote_interfaces,
                    array<string> allowed_interfaces,
                    string resolved_url);
 
   // Called by the shell in response to calling Shell's QuitApplication. The
   // application should run the callback with true if shutdown can proceed.
   // See Shell::QuitApplication for details about shutdown workflow.
   OnQuitRequested() => (bool can_quit);
 };