Cast: Log audio received events for audio

media/cast/test/end2end_unittest.cc

Index: media/cast/test/end2end_unittest.cc
diff --git a/media/cast/test/end2end_unittest.cc b/media/cast/test/end2end_unittest.cc
index ae55fae76c5ac647b05e4c435cceece35006b3a0..59822f189aee3c6176736b3eb9164213944e01e7 100644
--- a/media/cast/test/end2end_unittest.cc
+++ b/media/cast/test/end2end_unittest.cc
@@ -1335,7 +1335,10 @@ TEST_F(End2EndTest, AudioLogging) {
         map_it->second.counter[FRAME_DECODED];
 
     EXPECT_GT(map_it->second.counter[FRAME_ACK_SENT], 0);
+    EXPECT_GT(map_it->second.counter[FRAME_ACK_RECEIVED], 0);
     expected_event_count_for_frame += map_it->second.counter[FRAME_ACK_SENT];
+    expected_event_count_for_frame +=
+        map_it->second.counter[FRAME_ACK_RECEIVED];
 
     // Verify that there were no other events logged with respect to this frame.
     // (i.e. Total event count = expected event count)