Revert of Start of display management for mus

components/mus/ws/window_tree_host_impl.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 COMPONENTS_MUS_WS_WINDOW_TREE_HOST_IMPL_H_
 #define COMPONENTS_MUS_WS_WINDOW_TREE_HOST_IMPL_H_
 
 #include <stdint.h>
 
 #include <queue>
@@ skipping 38 matching lines @@
                      ConnectionManager* connection_manager,
                      mojo::ApplicationImpl* app_impl,
                      const scoped_refptr<GpuState>& gpu_state,
                      const scoped_refptr<SurfacesState>& surfaces_state,
                      mojom::WindowManagerPtr window_manater);
   ~WindowTreeHostImpl() override;
 
   // Initializes state that depends on the existence of a WindowTreeHostImpl.
   void Init(WindowTreeHostDelegate* delegate);
 
-  uint32_t id() const { return id_; }
-
   const WindowTreeImpl* GetWindowTree() const;
   WindowTreeImpl* GetWindowTree();
 
   mojom::WindowTreeHostClient* client() const { return client_.get(); }
 
   // Returns whether |window| is a descendant of this root but not itself a
   // root window.
   bool IsWindowAttachedToRoot(const ServerWindow* window) const;
 
   // Schedules a paint for the specified region in the coordinates of |window|
   // if
   // the |window| is in this viewport. Returns whether |window| is in the
   // viewport.
   bool SchedulePaintIfInViewport(const ServerWindow* window,
                                  const gfx::Rect& bounds);
 
   // Schedules destruction of surfaces in |window|. If a frame has been
   // scheduled but not drawn surface destruction is delayed until the frame is
   // drawn, otherwise destruction is immediate.
   void ScheduleSurfaceDestruction(ServerWindow* window);
 
   // Returns the metrics for this viewport.
   const mojom::ViewportMetrics& GetViewportMetrics() const;
 
-  mojom::Rotation GetRotation() const;
-
   ConnectionManager* connection_manager() { return connection_manager_; }
 
   mojom::WindowManager* window_manager() { return window_manager_.get(); }
 
   // Returns the root ServerWindow of this viewport.
   ServerWindow* root_window() { return root_.get(); }
   const ServerWindow* root_window() const { return root_.get(); }
 
   void SetFocusedWindow(ServerWindow* window);
   ServerWindow* GetFocusedWindow();
@@ skipping 122 matching lines @@
 
   std::set<WindowId> activation_parents_;
 
   // Set of windows with surfaces that need to be destroyed once the frame
   // draws.
   std::set<ServerWindow*> windows_needing_frame_destruction_;
 
   std::queue<scoped_ptr<QueuedEvent>> event_queue_;
   base::OneShotTimer event_ack_timer_;
 
-  const uint32_t id_;
-
   DISALLOW_COPY_AND_ASSIGN(WindowTreeHostImpl);
 };
 
 }  // namespace ws
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_WS_WINDOW_TREE_HOST_IMPL_H_