mus: Use a barebone mus client-lib in chrome-renderer.

content/renderer/mus/render_widget_mus_connection.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 CONTENT_RENDERER_MUS_RENDER_WIDGET_MUS_CONNECTION_H_
-#define CONTENT_RENDERER_MUS_RENDER_WIDGET_MUS_CONNECTION_H_
-
-#include "base/macros.h"
-#include "base/threading/thread_checker.h"
-#include "cc/output/compositor_frame_sink.h"
-#include "cc/output/context_provider.h"
-#include "content/common/content_export.h"
-#include "services/ui/public/interfaces/window_tree.mojom.h"
-
-namespace gpu {
-class GpuMemoryBufferManager;
-}
-
-namespace ui {
-class WindowCompositorFrameSinkBinding;
-}
-
-namespace content {
-
-// This lives in the main-thread, and manages the connection to the mus window
-// server for a RenderWidget.
-class CONTENT_EXPORT RenderWidgetMusConnection {
- public:
-  // Bind to a WindowTreeClient request.
-  void Bind(mojo::InterfaceRequest<ui::mojom::WindowTreeClient> request);
-
-  // Create a cc output surface.
-  std::unique_ptr<cc::CompositorFrameSink> CreateCompositorFrameSink(
-      const cc::FrameSinkId& frame_sink_id,
-      scoped_refptr<cc::ContextProvider> context_provider,
-      gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager);
-
-  static RenderWidgetMusConnection* Get(int routing_id);
-
-  // Get the connection from a routing_id, if the connection doesn't exist,
-  // a new connection will be created.
-  static RenderWidgetMusConnection* GetOrCreate(int routing_id);
-
- private:
-  friend class CompositorMusConnection;
-  friend class CompositorMusConnectionTest;
-
-  explicit RenderWidgetMusConnection(int routing_id);
-  ~RenderWidgetMusConnection();
-
-  const int routing_id_;
-  std::unique_ptr<ui::WindowCompositorFrameSinkBinding>
-      window_compositor_frame_sink_binding_;
-
-  DISALLOW_COPY_AND_ASSIGN(RenderWidgetMusConnection);
-};
-
-}  // namespace content
-
-#endif  // CONTENT_RENDERER_MUS_RENDER_WIDGET_MUS_CONNECTION_H_