[cc] Remove BeginFrameAck from BFS::DidFinishFrame and update tests.

components/exo/surface.cc

Index: components/exo/surface.cc
diff --git a/components/exo/surface.cc b/components/exo/surface.cc
index d68aa04186364f6113f8e13ed4730a3f94e5829c..b9a10dd4de673d15d79f9109e61f469e2dbc7659 100644
--- a/components/exo/surface.cc
+++ b/components/exo/surface.cc
@@ -428,14 +428,14 @@ void Surface::Commit() {
 
   if (current_begin_frame_ack_.sequence_number !=
       cc::BeginFrameArgs::kInvalidFrameNumber) {
-    if (begin_frame_source_)
-      begin_frame_source_->DidFinishFrame(this, current_begin_frame_ack_);
     if (!current_begin_frame_ack_.has_damage) {
       compositor_frame_sink_holder_->GetCompositorFrameSink()
           ->DidNotProduceFrame(current_begin_frame_ack_);
     }
     current_begin_frame_ack_.sequence_number =
         cc::BeginFrameArgs::kInvalidFrameNumber;
+    if (begin_frame_source_)
+      begin_frame_source_->DidFinishFrame(this);
   }
 }