Revert of Rename RTPVideoHeader.isFirstPacket to .is_first_packet_in_frame.

webrtc/modules/video_coding/session_info.cc

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 437 matching lines @@
     if (LatestSequenceNumber(packet.seqNum, (*rit).seqNum) == packet.seqNum)
       break;
 
   // Check for duplicate packets.
   if (rit != packets_.rend() && (*rit).seqNum == packet.seqNum &&
       (*rit).sizeBytes > 0)
     return -2;
 
   if (packet.codec == kVideoCodecH264) {
     frame_type_ = packet.frameType;
-    if (packet.is_first_packet_in_frame &&
+    if (packet.isFirstPacket &&
         (first_packet_seq_num_ == -1 ||
          IsNewerSequenceNumber(first_packet_seq_num_, packet.seqNum))) {
       first_packet_seq_num_ = packet.seqNum;
     }
     if (packet.markerBit &&
         (last_packet_seq_num_ == -1 ||
          IsNewerSequenceNumber(packet.seqNum, last_packet_seq_num_))) {
       last_packet_seq_num_ = packet.seqNum;
     }
   } else {
     // Only insert media packets between first and last packets (when
     // available).
     // Placing check here, as to properly account for duplicate packets.
     // Check if this is first packet (only valid for some codecs)
     // Should only be set for one packet per session.
-    if (packet.is_first_packet_in_frame && first_packet_seq_num_ == -1) {
+    if (packet.isFirstPacket && first_packet_seq_num_ == -1) {
       // The first packet in a frame signals the frame type.
       frame_type_ = packet.frameType;
       // Store the sequence number for the first packet.
       first_packet_seq_num_ = static_cast<int>(packet.seqNum);
     } else if (first_packet_seq_num_ != -1 &&
                IsNewerSequenceNumber(first_packet_seq_num_, packet.seqNum)) {
       LOG(LS_WARNING) << "Received packet with a sequence number which is out "
                          "of frame boundaries";
       return -3;
     } else if (frame_type_ == kEmptyFrame && packet.frameType != kEmptyFrame) {
@@ skipping 33 matching lines @@
   if (empty_seq_num_high_ == -1)
     empty_seq_num_high_ = seq_num;
   else
     empty_seq_num_high_ = LatestSequenceNumber(seq_num, empty_seq_num_high_);
   if (empty_seq_num_low_ == -1 ||
       IsNewerSequenceNumber(empty_seq_num_low_, seq_num))
     empty_seq_num_low_ = seq_num;
 }
 
 }  // namespace webrtc