RTC_[D]CHECK_op: Remove "u" suffix on integer constants

webrtc/modules/audio_coding/neteq/nack_tracker.cc

 /*
  *  Copyright (c) 2013 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 178 matching lines @@
   timestamp_last_received_rtp_ = 0;
   any_rtp_received_ = false;
   sequence_num_last_decoded_rtp_ = 0;
   timestamp_last_decoded_rtp_ = 0;
   any_rtp_decoded_ = false;
   sample_rate_khz_ = kDefaultSampleRateKhz;
   samples_per_packet_ = sample_rate_khz_ * kDefaultPacketSizeMs;
 }
 
 void NackTracker::SetMaxNackListSize(size_t max_nack_list_size) {
-  RTC_CHECK_GT(max_nack_list_size, 0u);
+  RTC_CHECK_GT(max_nack_list_size, 0);
   // Ugly hack to get around the problem of passing static consts by reference.
   const size_t kNackListSizeLimitLocal = NackTracker::kNackListSizeLimit;
   RTC_CHECK_LE(max_nack_list_size, kNackListSizeLimitLocal);
 
   max_nack_list_size_ = max_nack_list_size;
   LimitNackListSize();
 }
 
 void NackTracker::LimitNackListSize() {
   uint16_t limit = sequence_num_last_received_rtp_ -
@@ skipping 14 matching lines @@
   for (NackList::const_iterator it = nack_list_.begin(); it != nack_list_.end();
        ++it) {
     if (it->second.is_missing &&
         it->second.time_to_play_ms > round_trip_time_ms)
       sequence_numbers.push_back(it->first);
   }
   return sequence_numbers;
 }
 
 }  // namespace webrtc