Aura-Mus: Plumb LocalSurfaceId to ui::Compositor

ui/aura/mus/window_tree_client.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 UI_AURA_MUS_WINDOW_TREE_CLIENT_H_
 #define UI_AURA_MUS_WINDOW_TREE_CLIENT_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 544 matching lines @@
   ui::mojom::WindowTreePtr tree_ptr_;
   // Typically this is the value contained in |tree_ptr_|, but tests may
   // directly set this.
   ui::mojom::WindowTree* tree_;
 
   // Set to true if OnEmbed() was received.
   bool is_from_embed_ = false;
 
   bool in_destructor_;
 
+  bool enable_surface_synchronization_ = false;
+
   // A mapping to shared memory that is one 32 bit integer long. The window
   // server uses this to let us synchronously read the cursor location.
   mojo::ScopedSharedBufferMapping cursor_location_mapping_;
 
   base::ObserverList<WindowTreeClientObserver> observers_;
 
   std::unique_ptr<mojo::AssociatedBinding<ui::mojom::WindowManager>>
       window_manager_internal_;
   ui::mojom::WindowManagerClientAssociatedPtr window_manager_internal_client_;
 
@@ skipping 31 matching lines @@
   bool got_initial_displays_ = false;
 
   base::WeakPtrFactory<WindowTreeClient> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowTreeClient);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_MUS_WINDOW_TREE_CLIENT_H_