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

webrtc/modules/audio_coding/acm2/audio_coding_module.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 518 matching lines @@
     }
   }
 
   RTPFragmentationHeader my_fragmentation;
   ConvertEncodedInfoToFragmentationHeader(encoded_info, &my_fragmentation);
   FrameType frame_type;
   if (encode_buffer_.size() == 0 && encoded_info.send_even_if_empty) {
     frame_type = kEmptyFrame;
     encoded_info.payload_type = previous_pltype;
   } else {
-    RTC_DCHECK_GT(encode_buffer_.size(), 0u);
+    RTC_DCHECK_GT(encode_buffer_.size(), 0);
     frame_type = encoded_info.speech ? kAudioFrameSpeech : kAudioFrameCN;
   }
 
   {
     rtc::CritScope lock(&callback_crit_sect_);
     if (packetization_callback_) {
       packetization_callback_->SendData(
           frame_type, encoded_info.payload_type, encoded_info.encoded_timestamp,
           encode_buffer_.data(), encode_buffer_.size(),
           my_fragmentation.fragmentationVectorSize > 0 ? &my_fragmentation
@@ skipping 831 matching lines @@
 // Checks the validity of the parameters of the given codec
 bool AudioCodingModule::IsCodecValid(const CodecInst& codec) {
   bool valid = acm2::RentACodec::IsCodecValid(codec);
   if (!valid)
     WEBRTC_TRACE(webrtc::kTraceError, webrtc::kTraceAudioCoding, -1,
                  "Invalid codec setting");
   return valid;
 }
 
 }  // namespace webrtc