[cc] Fix CompositorFrameSinkSupport BeginFrameAck interface.

content/browser/renderer_host/delegated_frame_host.cc

Index: content/browser/renderer_host/delegated_frame_host.cc
diff --git a/content/browser/renderer_host/delegated_frame_host.cc b/content/browser/renderer_host/delegated_frame_host.cc
index 2f97166ea678d77f93fb6dd0187550c45b39ff24..a47a6ee22292e18d6a574c09741dc488b212b568 100644
--- a/content/browser/renderer_host/delegated_frame_host.cc
+++ b/content/browser/renderer_host/delegated_frame_host.cc
@@ -852,9 +852,9 @@ void DelegatedFrameHost::OnDidFinishFrame(const cc::BeginFrameAck& ack) {
         modified_ack.latest_confirmed_sequence_number;
   }
 
-  // TODO(eseckler): The interface to CompositorFrameSinkSupport should use
-  // SubmitCompositorFrame and BeginFrameDidNotSwap instead of DidFinishFrame.
-  support_->DidFinishFrame(modified_ack);
+  // If there was damage, the unmodified ack was sent with the CompositorFrame.
+  if (!modified_ack.has_damage)
+    support_->BeginFrameDidNotSwap(modified_ack);
 }
 
 void DelegatedFrameHost::CreateCompositorFrameSinkSupport() {