Add IPC messages to transfer compositor protos

content/renderer/gpu/render_widget_compositor.h

 // Copyright (c) 2013 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_GPU_RENDER_WIDGET_COMPOSITOR_H_
 #define CONTENT_RENDERER_GPU_RENDER_WIDGET_COMPOSITOR_H_
 
 #include "base/callback.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "base/values.h"
 #include "cc/input/top_controls_state.h"
 #include "cc/output/managed_memory_policy.h"
 #include "cc/output/swap_promise.h"
 #include "cc/trees/layer_tree_host_client.h"
 #include "cc/trees/layer_tree_host_single_thread_client.h"
 #include "cc/trees/layer_tree_settings.h"
+#include "cc/trees/remote_proto_channel.h"
 #include "cc/trees/swap_promise_monitor.h"
 #include "content/common/content_export.h"
 #include "content/renderer/gpu/compositor_dependencies.h"
 #include "third_party/WebKit/public/platform/WebLayerTreeView.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace ui {
 class LatencyInfo;
 }
 
 namespace cc {
 class CopyOutputRequest;
 class InputHandler;
 class Layer;
 class LayerTreeHost;
+
+namespace proto {
+class CompositorMessage;
+}
+
 }
 
 namespace content {
 class RenderWidget;
 
 class CONTENT_EXPORT RenderWidgetCompositor
     : NON_EXPORTED_BASE(public blink::WebLayerTreeView),
       NON_EXPORTED_BASE(public cc::LayerTreeHostClient),
-      NON_EXPORTED_BASE(public cc::LayerTreeHostSingleThreadClient) {
+      NON_EXPORTED_BASE(public cc::LayerTreeHostSingleThreadClient),
+      NON_EXPORTED_BASE(public cc::RemoteProtoChannel) {
  public:
   // Attempt to construct and initialize a compositor instance for the widget
   // with the given settings. Returns NULL if initialization fails.
   static scoped_ptr<RenderWidgetCompositor> Create(
       RenderWidget* widget,
       CompositorDependencies* compositor_deps);
 
   ~RenderWidgetCompositor() override;
 
   void SetNeverVisible();
@@ skipping 19 matching lines @@
   void SetNeedsUpdateLayers();
   void SetNeedsCommit();
   void NotifyInputThrottledUntilCommit();
   const cc::Layer* GetRootLayer() const;
   int ScheduleMicroBenchmark(
       const std::string& name,
       scoped_ptr<base::Value> value,
       const base::Callback<void(scoped_ptr<base::Value>)>& callback);
   bool SendMessageToMicroBenchmark(int id, scoped_ptr<base::Value> value);
   void SetSurfaceIdNamespace(uint32_t surface_id_namespace);
+  void OnHandleCompositorProto(const std::vector<char>& proto);
   cc::ManagedMemoryPolicy GetGpuMemoryPolicy(
       const cc::ManagedMemoryPolicy& policy);
   void SetPaintedDeviceScaleFactor(float device_scale);
 
   // WebLayerTreeView implementation.
   void setRootLayer(const blink::WebLayer& layer) override;
   void clearRootLayer() override;
   void attachCompositorAnimationTimeline(
       blink::WebCompositorAnimationTimeline* compositor_timeline) override;
   void detachCompositorAnimationTimeline(
@@ skipping 65 matching lines @@
   void RecordFrameTimingEvents(
       scoped_ptr<cc::FrameTimingTracker::CompositeTimingSet> composite_events,
       scoped_ptr<cc::FrameTimingTracker::MainFrameTimingSet> main_frame_events)
       override;
 
   // cc::LayerTreeHostSingleThreadClient implementation.
   void ScheduleAnimation() override;
   void DidPostSwapBuffers() override;
   void DidAbortSwapBuffers() override;
 
+  // cc::RemoteProtoChannel implementation.
+  void SetReceiver(Receiver* receiver) override;
+  void SendCompositorProto(const cc::proto::CompositorMessage& proto) override;
+
   enum {
     OUTPUT_SURFACE_RETRIES_BEFORE_FALLBACK = 4,
     MAX_OUTPUT_SURFACE_RETRIES = 5,
   };
 
  protected:
   RenderWidgetCompositor(RenderWidget* widget,
                          CompositorDependencies* compositor_deps);
 
   void Initialize();
   cc::LayerTreeHost* layer_tree_host() { return layer_tree_host_.get(); }
 
  private:
   void LayoutAndUpdateLayers();
   void InvokeLayoutAndPaintCallback();
   bool CompositeIsSynchronous() const;
   void SynchronouslyComposite();
 
   int num_failed_recreate_attempts_;
   RenderWidget* widget_;
   CompositorDependencies* compositor_deps_;
   scoped_ptr<cc::LayerTreeHost> layer_tree_host_;
   bool never_visible_;
 
   blink::WebLayoutAndPaintAsyncCallback* layout_and_paint_async_callback_;
   scoped_ptr<cc::CopyOutputRequest> temporary_copy_output_request_;
 
+  cc::RemoteProtoChannel::Receiver* remote_proto_channel_receiver_;
+
   base::WeakPtrFactory<RenderWidgetCompositor> weak_factory_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_GPU_RENDER_WIDGET_COMPOSITOR_H_