OnDrawHardware() implementation with async messages

content/browser/android/synchronous_compositor_host.h

Index: content/browser/android/synchronous_compositor_host.h
diff --git a/content/browser/android/synchronous_compositor_host.h b/content/browser/android/synchronous_compositor_host.h
index f5e6d2b519d64639cba424a7e7160222ee1edcfd..6bcf5626c04ad358f8a372f800c9341265febd2d 100644
--- a/content/browser/android/synchronous_compositor_host.h
+++ b/content/browser/android/synchronous_compositor_host.h
@@ -56,6 +56,13 @@ class SynchronousCompositorHost : public SynchronousCompositor {
       const gfx::Rect& clip,
       const gfx::Rect& viewport_rect_for_tile_priority,
       const gfx::Transform& transform_for_tile_priority) override;
+  SynchronousCompositor::Frame DemandDrawHw_Sync(
+      const gfx::Size& surface_size,
+      const gfx::Transform& transform,
+      const gfx::Rect& viewport,
+      const gfx::Rect& clip,
+      const gfx::Rect& viewport_rect_for_tile_priority,
+      const gfx::Transform& transform_for_tile_priority);
   bool DemandDrawSw(SkCanvas* canvas) override;
   void ReturnResources(uint32_t output_surface_id,
                        const cc::ReturnedResourceArray& resources) override;
@@ -68,6 +75,8 @@ class SynchronousCompositorHost : public SynchronousCompositor {
   void DidOverscroll(const DidOverscrollParams& over_scroll_params);
   void DidSendBeginFrame();
   bool OnMessageReceived(const IPC::Message& message);
+  void DemandDrawHwReceiveFrame(uint32_t output_surface_id,
+                                const cc::CompositorFrame&);
 
  private:
   class ScopedSendZeroMemory;
@@ -92,6 +101,8 @@ class SynchronousCompositorHost : public SynchronousCompositor {
   const int routing_id_;
   IPC::Sender* const sender_;
   const bool use_in_process_zero_copy_software_draw_;
+  //  bool did_receive_first_frame_synchronously_;
+  uint32_t sync_call_count_;
 
   size_t bytes_limit_;
   std::unique_ptr<SharedMemoryWithSize> software_draw_shm_;