Reland of Declare VideoCodec.codec_specific_info private

webrtc/api/android/jni/androidmediaencoder_jni.cc

Index: webrtc/api/android/jni/androidmediaencoder_jni.cc
diff --git a/webrtc/api/android/jni/androidmediaencoder_jni.cc b/webrtc/api/android/jni/androidmediaencoder_jni.cc
index 92b5aae65cf61f7630e9315e54c3c797044e82fd..3361154a75da447cb732774c9c46dd434ecb7318 100644
--- a/webrtc/api/android/jni/androidmediaencoder_jni.cc
+++ b/webrtc/api/android/jni/androidmediaencoder_jni.cc
@@ -404,7 +404,7 @@
   // TODO(pbos): Extract automaticResizeOn out of VP8 settings.
   scale_ = false;
   if (codecType_ == kVideoCodecVP8) {
-    scale_ = codec_settings->codecSpecific.VP8.automaticResizeOn;
+    scale_ = codec_settings->VP8().automaticResizeOn;
   } else if (codecType_ != kVideoCodecVP9) {
     scale_ = true;
   }