Rename RTPVideoHeader.isFirstPacket to .is_first_packet_in_frame.

webrtc/modules/include/module_common_types.h

Index: webrtc/modules/include/module_common_types.h
diff --git a/webrtc/modules/include/module_common_types.h b/webrtc/modules/include/module_common_types.h
index fa0826a551a456294310af4874aa6ec907247766..479e0c3cb34aa9a79d5016d8e989eeea9c2488b9 100644
--- a/webrtc/modules/include/module_common_types.h
+++ b/webrtc/modules/include/module_common_types.h
@@ -337,7 +337,7 @@ struct RTPVideoHeader {
 
   PlayoutDelay playout_delay;
 
-  bool isFirstPacket;    // first packet in frame
+  bool is_first_packet_in_frame;
   uint8_t simulcastIdx;  // Index if the simulcast encoder creating
                          // this frame, 0 if not using simulcast.
   RtpVideoCodecTypes codec;