Reformat existing code. There should be no functional effects.

webrtc/modules/audio_coding/codecs/isac/fix/source/codec.h

Index: webrtc/modules/audio_coding/codecs/isac/fix/source/codec.h
diff --git a/webrtc/modules/audio_coding/codecs/isac/fix/source/codec.h b/webrtc/modules/audio_coding/codecs/isac/fix/source/codec.h
index 3d003e4ed92c088f897b2214491b36886c3454be..d71decc67c8938625fb6a30d200500d71dffcb28 100644
--- a/webrtc/modules/audio_coding/codecs/isac/fix/source/codec.h
+++ b/webrtc/modules/audio_coding/codecs/isac/fix/source/codec.h
@@ -36,9 +36,9 @@ int WebRtcIsacfix_DecodeImpl(int16_t* signal_out16,
                              IsacFixDecoderInstance* ISACdec_obj,
                              int16_t* current_framesamples);
 
-int16_t WebRtcIsacfix_DecodePlcImpl(int16_t* decoded,
-                                          IsacFixDecoderInstance* ISACdec_obj,
-                                          int16_t* current_framesample );
+void WebRtcIsacfix_DecodePlcImpl(int16_t* decoded,
+                                 IsacFixDecoderInstance* ISACdec_obj,
+                                 int16_t* current_framesample );
 
 int WebRtcIsacfix_EncodeImpl(int16_t* in,
                              IsacFixEncoderInstance* ISACenc_obj,