Unify mustash display closing code paths.

services/ui/display/platform_screen_ozone.h

 // Copyright 2016 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_DISPLAY_PLATFORM_SCREEN_OZONE_H_
 #define SERVICES_UI_DISPLAY_PLATFORM_SCREEN_OZONE_H_
 
 #include <stdint.h>
 
 #include <set>
@@ skipping 19 matching lines @@
       public ui::DisplayConfigurator::Observer,
       public shell::InterfaceFactory<mojom::DisplayController>,
       public mojom::DisplayController {
  public:
   PlatformScreenOzone();
   ~PlatformScreenOzone() override;
 
   // PlatformScreen:
   void AddInterfaces(shell::InterfaceRegistry* registry) override;
   void Init(PlatformScreenDelegate* delegate) override;
+  void RequestCloseDisplay(int64_t display_id) override;
   int64_t GetPrimaryDisplayId() const override;
 
   // mojom::DisplayController:
   void ToggleVirtualDisplay() override;
 
  private:
   // TODO(kylechar): This struct is just temporary until we migrate
   // DisplayManager code out of ash so it can be used here.
   struct DisplayInfo {
     DisplayInfo(int64_t new_id, const gfx::Rect& new_bounds)
@@ skipping 67 matching lines @@
   gfx::Point next_display_origin_;
 
   mojo::BindingSet<mojom::DisplayController> bindings_;
 
   DISALLOW_COPY_AND_ASSIGN(PlatformScreenOzone);
 };
 
 }  // namespace display
 
 #endif  // SERVICES_UI_DISPLAY_PLATFORM_SCREEN_OZONE_H_