Added message filter receiving frames from compositor

content/public/browser/android/synchronous_compositor.h

Index: content/public/browser/android/synchronous_compositor.h
diff --git a/content/public/browser/android/synchronous_compositor.h b/content/public/browser/android/synchronous_compositor.h
index a4d5b40e91edb64c96fc6df5772c0a8f946d5b65..b6e9f1f8cabaeb5113f2fadd5312574e63575e6b 100644
--- a/content/public/browser/android/synchronous_compositor.h
+++ b/content/public/browser/android/synchronous_compositor.h
@@ -81,7 +81,8 @@ class CONTENT_EXPORT SynchronousCompositor {
   // |viewport_size| is the current size to improve results during resize.
   // |viewport_rect_for_tile_priority| and |transform_for_tile_priority| are
   // used to customize the tiling decisions of compositor.
-  virtual Frame DemandDrawHw(
+  // TODO(ojars): update this and the next documentation
+  virtual SynchronousCompositor::Frame DemandDrawHw(
       const gfx::Size& viewport_size,
       const gfx::Rect& viewport_rect_for_tile_priority,
       const gfx::Transform& transform_for_tile_priority) = 0;
@@ -89,7 +90,7 @@ class CONTENT_EXPORT SynchronousCompositor {
   // Same as DemandDrawHw, but uses asynchronous IPC messages. Calls
   // SynchronousCompositorClient::OnDrawHardwareProcessFrame to return the
   // frame.
-  virtual void DemandDrawHwAsync(
+  virtual scoped_refptr<SynchronousCompositor::FrameFuture> DemandDrawHwAsync(
       const gfx::Size& viewport_size,
       const gfx::Rect& viewport_rect_for_tile_priority,
       const gfx::Transform& transform_for_tile_priority) = 0;