Add a user id parameter to connections

components/mus/mus_app.h

 // 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.
 
 #ifndef COMPONENTS_MUS_MUS_APP_H_
 #define COMPONENTS_MUS_MUS_APP_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 46 matching lines @@
 
  private:
   // Holds InterfaceRequests received before the first WindowTreeHost Display
   // has been established.
   struct PendingRequest;
 
   void InitializeResources(mojo::Shell* shell);
 
   // mojo::ShellClient:
   void Initialize(mojo::Shell* shell, const std::string& url,
-                  uint32_t id) override;
+                  uint32_t id, uint32_t user_id) override;
   bool AcceptConnection(mojo::Connection* connection) override;
 
   // ConnectionManagerDelegate:
   void OnFirstRootConnectionCreated() override;
   void OnNoMoreRootConnections() override;
   ws::ClientConnection* CreateClientConnectionForEmbedAtWindow(
       ws::ConnectionManager* connection_manager,
       mojo::InterfaceRequest<mojom::WindowTree> tree_request,
       ws::ServerWindow* root,
       uint32_t policy_bitmask,
@@ skipping 38 matching lines @@
 
   // Surfaces
   scoped_refptr<SurfacesState> surfaces_state_;
 
   DISALLOW_COPY_AND_ASSIGN(MandolineUIServicesApp);
 };
 
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_MUS_APP_H_