Remove typedefs.h from webrtc/ root (part 1)

webrtc/modules/video_coding/rtp_frame_reference_finder.cc

Index: webrtc/modules/video_coding/rtp_frame_reference_finder.cc
diff --git a/webrtc/modules/video_coding/rtp_frame_reference_finder.cc b/webrtc/modules/video_coding/rtp_frame_reference_finder.cc
index e167e15c52cc60355fbef3dbb13e6d6a89145fac..82af3397e886e3093f88aeaada15d0445461a758 100644
--- a/webrtc/modules/video_coding/rtp_frame_reference_finder.cc
+++ b/webrtc/modules/video_coding/rtp_frame_reference_finder.cc
@@ -71,7 +71,7 @@ void RtpFrameReferenceFinder::RetryStashedFrames() {
         case kHandOff:
           complete_frame = true;
           frame_callback_->OnCompleteFrame(std::move(*frame_it));
-          FALLTHROUGH();
+          RTC_FALLTHROUGH();
         case kDrop:
           frame_it = stashed_frames_.erase(frame_it);
       }