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/encoded_frame.cc b/modules/video_coding/encoded_frame.cc
index 2f7a2c7..7519ad6 100644
--- a/modules/video_coding/encoded_frame.cc
+++ b/modules/video_coding/encoded_frame.cc
@@ -85,7 +85,7 @@
   _codec = kVideoCodecUnknown;
   rotation_ = kVideoRotation_0;
   content_type_ = VideoContentType::UNSPECIFIED;
-  timing_.flags = TimingFrameFlags::kInvalid;
+  timing_.flags = VideoSendTiming::kInvalid;
   _rotation_set = false;
 }