Cleanup webrtc:: namespace from leaked TimingFrameFlags

Bug: webrtc:9351
Change-Id: Ifbc0a522bf13ab62a2e490b9f129eacfabe7796f
Reviewed-on: https://webrtc-review.googlesource.com/80961
Commit-Queue: Ilya Nikolaevskiy <ilnik@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#23520}
diff --git a/modules/video_coding/frame_object.cc b/modules/video_coding/frame_object.cc
index 4aa18ba..676175d 100644
--- a/modules/video_coding/frame_object.cc
+++ b/modules/video_coding/frame_object.cc
@@ -84,7 +84,7 @@
   _rotation_set = true;
   content_type_ = last_packet->video_header.content_type;
   if (last_packet->video_header.video_timing.flags !=
-      TimingFrameFlags::kInvalid) {
+      VideoSendTiming::kInvalid) {
     // ntp_time_ms_ may be -1 if not estimated yet. This is not a problem,
     // as this will be dealt with at the time of reporting.
     timing_.encode_start_ms =