PacketBuffer now correctly cast sequence numbers to uint16_t.

webrtc/modules/video_coding/packet_buffer.cc

 /*
  *  Copyright (c) 2016 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 169 matching lines @@
 
   if (!sequence_buffer_[index].used)
     return false;
   if (sequence_buffer_[index].frame_created)
     return false;
   if (sequence_buffer_[index].frame_begin)
     return true;
   if (!sequence_buffer_[prev_index].used)
     return false;
   if (sequence_buffer_[prev_index].seq_num !=
-      sequence_buffer_[index].seq_num - 1) {
+      static_cast<uint16_t>(sequence_buffer_[index].seq_num - 1)) {
     return false;
   }
   if (sequence_buffer_[prev_index].continuous)
     return true;
 
   return false;
 }
 
 std::vector<std::unique_ptr<RtpFrameObject>> PacketBuffer::FindFrames(
     uint16_t seq_num) {
@@ skipping 92 matching lines @@
 int PacketBuffer::Release() const {
   int count = rtc::AtomicOps::Decrement(&ref_count_);
   if (!count) {
     delete this;
   }
   return count;
 }
 
 }  // namespace video_coding
 }  // namespace webrtc