Update audio code to use size_t more correctly,

webrtc/modules/audio_coding/neteq/accelerate.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.
  */
 
 #include "webrtc/modules/audio_coding/neteq/accelerate.h"
 
 #include "webrtc/common_audio/signal_processing/include/signal_processing_library.h"
 
 namespace webrtc {
 
 Accelerate::ReturnCodes Accelerate::Process(const int16_t* input,
                                             size_t input_length,
                                             bool fast_accelerate,
                                             AudioMultiVector* output,
-                                            int16_t* length_change_samples) {
+                                            size_t* length_change_samples) {
   // Input length must be (almost) 30 ms.
   static const int k15ms = 120;  // 15 ms = 120 samples at 8 kHz sample rate.
   if (num_channels_ == 0 || static_cast<int>(input_length) / num_channels_ <
       (2 * k15ms - 1) * fs_mult_) {
     // Length of input data too short to do accelerate. Simply move all data
     // from input to output.
     output->PushBackInterleaved(input, input_length);
     return kError;
   }
   return TimeStretch::Process(input, input_length, fast_accelerate, output,
                               length_change_samples);
 }
 
 void Accelerate::SetParametersForPassiveSpeech(size_t /*len*/,
                                                int16_t* best_correlation,
-                                               int* /*peak_index*/) const {
+                                               size_t* /*peak_index*/) const {
   // When the signal does not contain any active speech, the correlation does
   // not matter. Simply set it to zero.
   *best_correlation = 0;
 }
 
 Accelerate::ReturnCodes Accelerate::CheckCriteriaAndStretch(
     const int16_t* input,
     size_t input_length,
     size_t peak_index,
     int16_t best_correlation,
@@ skipping 44 matching lines @@
 }
 
 Accelerate* AccelerateFactory::Create(
     int sample_rate_hz,
     size_t num_channels,
     const BackgroundNoise& background_noise) const {
   return new Accelerate(sample_rate_hz, num_channels, background_noise);
 }
 
 }  // namespace webrtc