Delete OnscreenDisplayClient and TopLevelDisplayClient.

components/mus/surfaces/top_level_display_client.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_SURFACES_TOP_LEVEL_DISPLAY_CLIENT_H_
-#define COMPONENTS_MUS_SURFACES_TOP_LEVEL_DISPLAY_CLIENT_H_
-
-#include "cc/surfaces/display_client.h"
-
-#include "base/memory/ref_counted.h"
-#include "base/single_thread_task_runner.h"
-
-namespace cc {
-class Display;
-class OutputSurface;
-class RendererSettings;
-class SharedBitmapManager;
-class SurfaceManager;
-}
-
-namespace gpu {
-class GpuMemoryBufferManager;
-}
-
-namespace mus {
-
-class TopLevelDisplayClient : public cc::DisplayClient {
- public:
-  TopLevelDisplayClient(std::unique_ptr<cc::OutputSurface> output_surface,
-                        cc::SurfaceManager* surface_manager,
-                        cc::SharedBitmapManager* bitmap_manager,
-                        gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
-                        const cc::RendererSettings& settings,
-                        scoped_refptr<base::SingleThreadTaskRunner> task_runner,
-                        uint32_t compositor_surface_namespace);
-  ~TopLevelDisplayClient() override;
-
-  bool Initialize();
-
-  cc::Display* display() { return display_.get(); }
-
- private:
-  // DisplayClient implementation.
-  void OutputSurfaceLost() override;
-  void SetMemoryPolicy(const cc::ManagedMemoryPolicy& policy) override;
-
-  std::unique_ptr<cc::OutputSurface> output_surface_;
-  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
-  std::unique_ptr<cc::Display> display_;
-
-  DISALLOW_COPY_AND_ASSIGN(TopLevelDisplayClient);
-};
-
-}  // namespace mus
-
-#endif  // COMPONENTS_MUS_SURFACES_TOP_LEVEL_DISPLAY_CLIENT_H_