Convert some more things to size_t.

webrtc/modules/audio_device/android/audio_manager.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 173 matching lines @@
   ALOGD("hardware_aec: %d", hardware_aec);
   ALOGD("low_latency_output: %d", low_latency_output);
   ALOGD("sample_rate: %d", sample_rate);
   ALOGD("channels: %d", channels);
   ALOGD("output_buffer_size: %d", output_buffer_size);
   ALOGD("input_buffer_size: %d", input_buffer_size);
   DCHECK(thread_checker_.CalledOnValidThread());
   hardware_aec_ = hardware_aec;
   low_latency_playout_ = low_latency_output;
   // TODO(henrika): add support for stereo output.
-  playout_parameters_.reset(sample_rate, channels, output_buffer_size);
-  record_parameters_.reset(sample_rate, channels, input_buffer_size);
+  playout_parameters_.reset(sample_rate, channels,
+                            static_cast<size_t>(output_buffer_size));
+  record_parameters_.reset(sample_rate, channels,
+                           static_cast<size_t>(input_buffer_size));
 }
 
 const AudioParameters& AudioManager::GetPlayoutAudioParameters() {
   CHECK(playout_parameters_.is_valid());
   DCHECK(thread_checker_.CalledOnValidThread());
   return playout_parameters_;
 }
 
 const AudioParameters& AudioManager::GetRecordAudioParameters() {
   CHECK(record_parameters_.is_valid());
   DCHECK(thread_checker_.CalledOnValidThread());
   return record_parameters_;
 }
 
 }  // namespace webrtc