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

webrtc/video/video_stream_encoder.cc

Index: webrtc/video/video_stream_encoder.cc
diff --git a/webrtc/video/video_stream_encoder.cc b/webrtc/video/video_stream_encoder.cc
index ccd28544e858f6a3312624258d6fca4353804546..7ecc88c9e9ee088f97be4edcaea922e91d6c1a11 100644
--- a/webrtc/video/video_stream_encoder.cc
+++ b/webrtc/video/video_stream_encoder.cc
@@ -978,7 +978,7 @@ void VideoStreamEncoder::AdaptDown(AdaptReason reason) {
         break;
       }
       // Scale down resolution.
-      FALLTHROUGH();
+      RTC_FALLTHROUGH();
     }
     case VideoSendStream::DegradationPreference::kMaintainFramerate:
       // Scale down resolution.
@@ -1056,7 +1056,7 @@ void VideoStreamEncoder::AdaptUp(AdaptReason reason) {
         break;
       }
       // Scale up resolution.
-      FALLTHROUGH();
+      RTC_FALLTHROUGH();
     }
     case VideoSendStream::DegradationPreference::kMaintainFramerate: {
       // Scale up resolution.