sync compositor: Merge input path with chrome

content/browser/android/in_process/synchronous_compositor_impl.cc

Index: content/browser/android/in_process/synchronous_compositor_impl.cc
diff --git a/content/browser/android/in_process/synchronous_compositor_impl.cc b/content/browser/android/in_process/synchronous_compositor_impl.cc
index a10e6082a4d41ff89dc20812d16a1233962fe23e..b06c6ead1f36de2faba790827ceee9b56b4b511c 100644
--- a/content/browser/android/in_process/synchronous_compositor_impl.cc
+++ b/content/browser/android/in_process/synchronous_compositor_impl.cc
@@ -279,7 +279,7 @@ void SynchronousCompositorImpl::UpdateNeedsBeginFrames() {
   rwhva_->OnSetNeedsBeginFrames(is_active_ && renderer_needs_begin_frames_);
 }
 
-void SynchronousCompositorImpl::DidOverscroll(
+void SynchronousCompositorImpl::DidOverscrollInProcess(
     const DidOverscrollParams& params) {
   if (registered_with_client_) {
     compositor_client_->DidOverscroll(params.accumulated_overscroll,
@@ -303,6 +303,11 @@ InputEventAckState SynchronousCompositorImpl::HandleInputEvent(
       routing_id_, input_event);
 }
 
+void SynchronousCompositorImpl::DidOverscroll(
+    const DidOverscrollParams& params) {
+  NOTREACHED();  // In-process path does not use async DidOverscroll.

[tdresser, 2016/03/04 19:42:25]

Can you add to this comment indicating this path does receive information about
overscrolling?

[boliu, 2016/03/05 01:28:46]

Done.

+}
+
 bool SynchronousCompositorImpl::OnMessageReceived(const IPC::Message& message) {
   NOTREACHED();
   return false;