Clean up RTCVideoFrame

webrtc/sdk/objc/Framework/Classes/RTCVideoRendererAdapter.mm

Index: webrtc/sdk/objc/Framework/Classes/RTCVideoRendererAdapter.mm
diff --git a/webrtc/sdk/objc/Framework/Classes/RTCVideoRendererAdapter.mm b/webrtc/sdk/objc/Framework/Classes/RTCVideoRendererAdapter.mm
index 8bc01b1ce89c4f0016a4ca550c11236d9d5ffe55..1d5107b1b0e877724b6f7d3045e3a7d739c49ca3 100644
--- a/webrtc/sdk/objc/Framework/Classes/RTCVideoRendererAdapter.mm
+++ b/webrtc/sdk/objc/Framework/Classes/RTCVideoRendererAdapter.mm
@@ -27,9 +27,10 @@ class VideoRendererAdapter
   void OnFrame(const webrtc::VideoFrame& nativeVideoFrame) override {
     RTCVideoFrame* videoFrame = [[RTCVideoFrame alloc]
         initWithVideoBuffer:nativeVideoFrame.video_frame_buffer()
-                   rotation:nativeVideoFrame.rotation()
+                   rotation:static_cast<RTCVideoRotation>(
+                                nativeVideoFrame.rotation())
                 timeStampNs:nativeVideoFrame.timestamp_us() *
-                                rtc::kNumNanosecsPerMicrosec];
+                            rtc::kNumNanosecsPerMicrosec];
     CGSize current_size = (videoFrame.rotation % 180 == 0)
                               ? CGSizeMake(videoFrame.width, videoFrame.height)
                               : CGSizeMake(videoFrame.height, videoFrame.width);