mus: Each ServerWindowSurface should have a different client ID

services/ui/ws/server_window_surface.h

 // Copyright 2015 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 SERVICES_UI_WS_SERVER_WINDOW_SURFACE_H_
 #define SERVICES_UI_WS_SERVER_WINDOW_SURFACE_H_
 
 #include <set>
 
 #include "base/macros.h"
@@ skipping 33 matching lines @@
   // mojom::Surface:
   void SubmitCompositorFrame(
       cc::CompositorFrame frame,
       const SubmitCompositorFrameCallback& callback) override;
 
   const cc::SurfaceId& id() const { return surface_id_; }
 
   // Destroys old surfaces that have been outdated by a new surface.
   void DestroySurfacesScheduledForDestruction();
 
-  // Registers this with the SurfaceManager
-  void RegisterForBeginFrames();
-
  private:
   ServerWindow* window();
 
   // SurfaceFactoryClient implementation.
   void ReturnResources(const cc::ReturnedResourceArray& resources) override;
   void SetBeginFrameSource(cc::BeginFrameSource* begin_frame_source) override;
 
   ServerWindowSurfaceManager* manager_;  // Owns this.
 
   gfx::Size last_submitted_frame_size_;
 
   cc::SurfaceId surface_id_;
+  cc::SurfaceIdAllocator surface_id_allocator_;
   cc::SurfaceFactory surface_factory_;
 
   mojom::SurfaceClientPtr client_;
   mojo::Binding<Surface> binding_;
 
   // Set of surface ids that need to be destroyed.
   std::set<cc::SurfaceId> surfaces_scheduled_for_destruction_;
 
-  bool registered_surface_factory_client_;
-
   DISALLOW_COPY_AND_ASSIGN(ServerWindowSurface);
 };
 
 }  // namespace ws
 
 }  // namespace ui
 
 #endif  // SERVICES_UI_WS_SERVER_WINDOW_SURFACE_H_