Refactoring: Hide VideoCodec.codecSpecific as "private"

webrtc/video/video_receive_stream.cc

Index: webrtc/video/video_receive_stream.cc
diff --git a/webrtc/video/video_receive_stream.cc b/webrtc/video/video_receive_stream.cc
index 1753db5d48f60d3a4f487f7c266f0e790b313863..96b76d817444ecc56c122376b686dfe725c0ff3e 100644
--- a/webrtc/video/video_receive_stream.cc
+++ b/webrtc/video/video_receive_stream.cc
@@ -127,11 +127,11 @@ VideoCodec CreateDecoderVideoCodec(const VideoReceiveStream::Decoder& decoder) {
   }
 
   if (codec.codecType == kVideoCodecVP8) {
-    codec.codecSpecific.VP8 = VideoEncoder::GetDefaultVp8Settings();
+    *(codec.VP8()) = VideoEncoder::GetDefaultVp8Settings();
   } else if (codec.codecType == kVideoCodecVP9) {
-    codec.codecSpecific.VP9 = VideoEncoder::GetDefaultVp9Settings();
+    *(codec.VP9()) = VideoEncoder::GetDefaultVp9Settings();
   } else if (codec.codecType == kVideoCodecH264) {
-    codec.codecSpecific.H264 = VideoEncoder::GetDefaultH264Settings();
+    *(codec.H264()) = VideoEncoder::GetDefaultH264Settings();
   }
 
   codec.width = 320;