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

webrtc/modules/audio_processing/aec/aec_resampler.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 56 matching lines @@
                               size_t size,
                               float skew,
                               float* outspeech,
                               size_t* size_out) {
   AecResampler* obj = static_cast<AecResampler*>(resampInst);
 
   float* y;
   float be, tnew;
   size_t tn, mm;
 
-  RTC_DCHECK_LE(size, 2u * FRAME_LEN);
+  RTC_DCHECK_LE(size, 2 * FRAME_LEN);
   RTC_DCHECK(resampInst);
   RTC_DCHECK(inspeech);
   RTC_DCHECK(outspeech);
   RTC_DCHECK(size_out);
 
   // Add new frame data in lookahead
   memcpy(&obj->buffer[FRAME_LEN + kResamplingDelay], inspeech,
          size * sizeof(inspeech[0]));
 
   // Sample rate ratio
@@ skipping 110 matching lines @@
   denom = x2 - xAvg * x;
 
   if (denom != 0) {
     skew = (xy - xAvg * y) / denom;
   }
 
   *skewEst = skew;
   return 0;
 }
 }  // namespace webrtc