Introduce Display Compositor mojo interface. Use InProcessContextProvider.

services/ui/ws/gpu_compositor_frame_sink.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 SERVICES_UI_WS_GPU_COMPOSITOR_FRAME_SINK_H_
-#define SERVICES_UI_WS_GPU_COMPOSITOR_FRAME_SINK_H_
-
-#include <memory>
-#include <set>
-
-#include "base/macros.h"
-#include "base/memory/ref_counted.h"
-#include "cc/ipc/compositor_frame.mojom.h"
-#include "cc/ipc/mojo_compositor_frame_sink.mojom.h"
-#include "cc/output/context_provider.h"
-#include "cc/scheduler/begin_frame_source.h"
-#include "cc/surfaces/display.h"
-#include "cc/surfaces/display_client.h"
-#include "cc/surfaces/frame_sink_id.h"
-#include "cc/surfaces/surface_factory.h"
-#include "cc/surfaces/surface_factory_client.h"
-#include "cc/surfaces/surface_id.h"
-#include "cc/surfaces/surface_id_allocator.h"
-#include "mojo/public/cpp/bindings/binding.h"
-#include "services/ui/surfaces/surfaces_context_provider.h"
-
-namespace base {
-class SingleThreadTaskRunner;
-}
-
-namespace gpu {
-class GpuMemoryBufferManager;
-}
-
-namespace ui {
-
-class DisplayCompositor;
-
-namespace ws {
-
-// Server side representation of a WindowSurface.
-class GpuCompositorFrameSink : public cc::mojom::MojoCompositorFrameSink,
-                               public cc::DisplayClient,
-                               public cc::mojom::MojoCompositorFrameSinkPrivate,
-                               public cc::SurfaceFactoryClient,
-                               public cc::BeginFrameObserver {
- public:
-  // TODO(fsamuel): DisplayCompositor should own
-  // GpuCompositorFrameSink. GpuCompositorFrameSink should not
-  // refer to GpuCompositorFrameSinkManager.
-  GpuCompositorFrameSink(
-      scoped_refptr<DisplayCompositor> display_compositor,
-      const cc::FrameSinkId& frame_sink_id,
-      gfx::AcceleratedWidget widget,
-      gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
-      scoped_refptr<SurfacesContextProvider> context_provider,
-      cc::mojom::MojoCompositorFrameSinkRequest request,
-      cc::mojom::MojoCompositorFrameSinkPrivateRequest private_request,
-      cc::mojom::MojoCompositorFrameSinkClientPtr client);
-
-  ~GpuCompositorFrameSink() override;
-
-  // cc::mojom::MojoCompositorFrameSink:
-  void SetNeedsBeginFrame(bool needs_begin_frame) override;
-  void SubmitCompositorFrame(cc::CompositorFrame frame) override;
-
-  // cc::mojom::MojoCompositorFrameSinkPrivate:
-  void AddChildFrameSink(const cc::FrameSinkId& child_frame_sink_id) override;
-  void RemoveChildFrameSink(
-      const cc::FrameSinkId& child_frame_sink_id) override;
-
- private:
-  void InitDisplay(gfx::AcceleratedWidget widget,
-                   gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager,
-                   scoped_refptr<SurfacesContextProvider> context_provider);
-
-  void DidReceiveCompositorFrameAck();
-
-  // cc::DisplayClient implementation.
-  void DisplayOutputSurfaceLost() override;
-  void DisplayWillDrawAndSwap(bool will_draw_and_swap,
-                              const cc::RenderPassList& render_passes) override;
-  void DisplayDidDrawAndSwap() override;
-
-  // cc::SurfaceFactoryClient implementation.
-  void ReturnResources(const cc::ReturnedResourceArray& resources) override;
-  void SetBeginFrameSource(cc::BeginFrameSource* begin_frame_source) override;
-
-  // cc::BeginFrameObserver implementation.
-  void OnBeginFrame(const cc::BeginFrameArgs& args) override;
-  const cc::BeginFrameArgs& LastUsedBeginFrameArgs() const override;
-  void OnBeginFrameSourcePausedChanged(bool paused) override;
-
-  void UpdateNeedsBeginFramesInternal();
-
-  const cc::FrameSinkId frame_sink_id_;
-  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
-
-  // TODO(fsamuel): We hold a reference to DisplayCompositor so we can talk to
-  // SurfaceManager in the destructor. In the future, DisplayCompositor will own
-  // GpuCompositorFrameSink.
-  scoped_refptr<DisplayCompositor> display_compositor_;
-
-  gfx::Size last_submitted_frame_size_;
-  // GpuCompositorFrameSink holds a cc::Display if it created with
-  // non-null gfx::AcceleratedWidget. In the window server, the display root
-  // window's CompositorFrameSink will have a valid gfx::AcceleratedWidget.
-  std::unique_ptr<cc::Display> display_;
-
-  cc::LocalFrameId local_frame_id_;
-  cc::SurfaceIdAllocator surface_id_allocator_;
-  cc::SurfaceFactory surface_factory_;
-  // Counts the number of CompositorFrames that have been submitted and have not
-  // yet received an ACK.
-  int ack_pending_count_ = 0;
-  cc::ReturnedResourceArray surface_returned_resources_;
-
-  // The begin frame source being observered. Null if none.
-  cc::BeginFrameSource* begin_frame_source_ = nullptr;
-
-  // The last begin frame args generated by the begin frame source.
-  cc::BeginFrameArgs last_begin_frame_args_;
-
-  // Whether a request for begin frames has been issued.
-  bool needs_begin_frame_ = false;
-
-  // Whether or not a frame observer has been added.
-  bool added_frame_observer_ = false;
-
-  cc::mojom::MojoCompositorFrameSinkClientPtr client_;
-  mojo::Binding<cc::mojom::MojoCompositorFrameSink> binding_;
-  mojo::Binding<cc::mojom::MojoCompositorFrameSinkPrivate> private_binding_;
-
-  DISALLOW_COPY_AND_ASSIGN(GpuCompositorFrameSink);
-};
-
-}  // namespace ws
-
-}  // namespace ui
-
-#endif  // SERVICES_UI_WS_GPU_COMPOSITOR_FRAME_SINK_H_