[cc] Forward BeginFrameAcks through RWHVAndroid / DFHAndroid.

ui/android/delegated_frame_host_android.cc

Index: ui/android/delegated_frame_host_android.cc
diff --git a/ui/android/delegated_frame_host_android.cc b/ui/android/delegated_frame_host_android.cc
index 19483cd513aecd20a767d24bec0c6fb7f2858efd..4bcaff5a2f51dba0e016a3f1920733ca7dd0529a 100644
--- a/ui/android/delegated_frame_host_android.cc
+++ b/ui/android/delegated_frame_host_android.cc
@@ -180,6 +180,9 @@ void DelegatedFrameHostAndroid::OnNeedsBeginFrames(bool needs_begin_frames) {
 }
 
 void DelegatedFrameHostAndroid::OnDidFinishFrame(const cc::BeginFrameAck& ack) {
+  // If there was damage, SubmitCompositorFrame includes the ack.
+  if (!ack.has_damage)
+    support_->BeginFrameDidNotSwap(ack);
 }
 
 void DelegatedFrameHostAndroid::CreateNewCompositorFrameSinkSupport() {