Refactor ozone drm cursor code for mojo

ui/ozone/platform/drm/mus_thread_proxy.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 UI_OZONE_PLATFORM_DRM_MUS_THREAD_PROXY_H_
 #define UI_OZONE_PLATFORM_DRM_MUS_THREAD_PROXY_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 77 matching lines @@
   bool GpuCreateWindow(gfx::AcceleratedWidget widget) override;
   bool GpuWindowBoundsChanged(gfx::AcceleratedWidget widget,
                               const gfx::Rect& bounds) override;
 
   // DrmCursorProxy.
   void CursorSet(gfx::AcceleratedWidget window,
                  const std::vector<SkBitmap>& bitmaps,
                  const gfx::Point& point,
                  int frame_delay_ms) override;
   void Move(gfx::AcceleratedWidget window, const gfx::Point& point) override;
+  void InitializeOnEvdev() override;
 
  private:
   void RunObservers();
   void DispatchObserversFromDrmThread();
 
   void GpuCheckOverlayCapabilitiesCallback(
       gfx::AcceleratedWidget widget,
       const std::vector<OverlayCheck_Params>& overlays) const;
 
   void GpuConfigureNativeDisplayCallback(int64_t display_id,
@@ skipping 24 matching lines @@
   base::ThreadChecker on_window_server_thread_;
 
   base::WeakPtrFactory<MusThreadProxy> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MusThreadProxy);
 };
 
 }  // namespace ui
 
 #endif  // UI_OZONE_PLATFORM_DRM_MUS_THREAD_PROXY_H_