Relax too strict DCHECKs while parsing rtcp reports

webrtc/modules/rtp_rtcp/source/rtcp_packet/receiver_report.cc

 /*
  *  Copyright (c) 2015 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 32 matching lines @@
   sender_ssrc_ = ByteReader<uint32_t>::ReadBigEndian(packet.payload());
 
   const uint8_t* next_report_block = packet.payload() + kRrBaseLength;
 
   report_blocks_.resize(report_blocks_count);
   for (ReportBlock& block : report_blocks_) {
     block.Parse(next_report_block, ReportBlock::kLength);
     next_report_block += ReportBlock::kLength;
   }
 
-  RTC_DCHECK_EQ(next_report_block - packet.payload(),
+  RTC_DCHECK_LE(next_report_block - packet.payload(),
                 static_cast<ptrdiff_t>(packet.payload_size_bytes()));
   return true;
 }
 
 bool ReceiverReport::Create(uint8_t* packet,
                             size_t* index,
                             size_t max_length,
                             RtcpPacket::PacketReadyCallback* callback) const {
   while (*index + BlockLength() > max_length) {
     if (!OnBufferFull(packet, index, callback))
@@ skipping 14 matching lines @@
   if (report_blocks_.size() >= kMaxNumberOfReportBlocks) {
     LOG(LS_WARNING) << "Max report blocks reached.";
     return false;
   }
   report_blocks_.push_back(block);
   return true;
 }
 
 }  // namespace rtcp
 }  // namespace webrtc