Revert of Deletes mojo::Callback

components/mus/ws/platform_display.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_WS_PLATFORM_DISPLAY_H_
 #define COMPONENTS_MUS_WS_PLATFORM_DISPLAY_H_
 
 #include <stdint.h>
 
 #include <map>
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
 #include "base/timer/timer.h"
 #include "build/build_config.h"
 #include "cc/surfaces/surface.h"
 #include "components/mus/public/interfaces/window_manager.mojom.h"
 #include "components/mus/public/interfaces/window_manager_constants.mojom.h"
 #include "components/mus/public/interfaces/window_tree.mojom.h"
 #include "components/mus/ws/platform_display_delegate.h"
 #include "components/mus/ws/platform_display_init_params.h"
+#include "mojo/public/cpp/bindings/callback.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/platform_window/platform_window_delegate.h"
 
 namespace cc {
 class CompositorFrame;
 class CopyOutputRequest;
 class SurfaceIdAllocator;
 class SurfaceManager;
 }  // namespace cc
 
@@ skipping 147 matching lines @@
   base::WeakPtrFactory<DefaultPlatformDisplay> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DefaultPlatformDisplay);
 };
 
 }  // namespace ws
 
 }  // namespace mus
 
 #endif  // COMPONENTS_MUS_WS_PLATFORM_DISPLAY_H_