ui + mus: Split ContextFactory into ContextFactory(Client) and ContextFactoryPrivate

ui/aura/mus/mus_context_factory.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 UI_AURA_MUS_MUS_CONTEXT_FACTORY_H_
 #define UI_AURA_MUS_MUS_CONTEXT_FACTORY_H_
 
 #include <stdint.h>
 
 #include "base/macros.h"
@@ skipping 12 matching lines @@
 // ContextFactory implementation that can be used with Mus.
 class AURA_EXPORT MusContextFactory : public ui::ContextFactory {
  public:
   explicit MusContextFactory(ui::Gpu* gpu);
   ~MusContextFactory() override;
 
  private:
   // ContextFactory:
   void CreateCompositorFrameSink(
       base::WeakPtr<ui::Compositor> compositor) override;
-  std::unique_ptr<ui::Reflector> CreateReflector(
-      ui::Compositor* mirrored_compositor,
-      ui::Layer* mirroring_layer) override;
-  void RemoveReflector(ui::Reflector* reflector) override;
   scoped_refptr<cc::ContextProvider> SharedMainThreadContextProvider() override;
   void RemoveCompositor(ui::Compositor* compositor) override;
   bool DoesCreateTestContexts() override;
   uint32_t GetImageTextureTarget(gfx::BufferFormat format,
                                  gfx::BufferUsage usage) override;
   gpu::GpuMemoryBufferManager* GetGpuMemoryBufferManager() override;
   cc::TaskGraphRunner* GetTaskGraphRunner() override;
-  cc::FrameSinkId AllocateFrameSinkId() override;
-  cc::SurfaceManager* GetSurfaceManager() override;
-  void SetDisplayVisible(ui::Compositor* compositor, bool visible) override;
-  void ResizeDisplay(ui::Compositor* compositor,
-                     const gfx::Size& size) override;
-  void SetDisplayColorSpace(ui::Compositor* compositor,
-                            const gfx::ColorSpace& color_space) override {}
-  void SetAuthoritativeVSyncInterval(ui::Compositor* compositor,
-                                     base::TimeDelta interval) override {}
-  void SetDisplayVSyncParameters(ui::Compositor* compositor,
-                                 base::TimeTicks timebase,
-                                 base::TimeDelta interval) override {}
-  void SetOutputIsSecure(ui::Compositor* compositor, bool secure) override {}
   void AddObserver(ui::ContextFactoryObserver* observer) override {}
   void RemoveObserver(ui::ContextFactoryObserver* observer) override {}
 
-  cc::SurfaceManager surface_manager_;
-  uint32_t next_sink_id_;
   ui::RasterThreadHelper raster_thread_helper_;
   ui::Gpu* gpu_;
 
   DISALLOW_COPY_AND_ASSIGN(MusContextFactory);
 };
 
 }  // namespace aura
 
 #endif  // UI_AURA_MUS_MUS_CONTEXT_FACTORY_H_