Reland of move ignored return code from modules.

webrtc/api/test/fakeaudiocapturemodule.cc

 /*
  *  Copyright 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 67 matching lines @@
     // TODO: wraparound could be handled more gracefully.
     return 0;
   }
   const uint32_t elapsed_time = current_time - last_process_time_ms_;
   if (kAdmMaxIdleTimeProcess < elapsed_time) {
     return 0;
   }
   return kAdmMaxIdleTimeProcess - elapsed_time;
 }
 
-int32_t FakeAudioCaptureModule::Process() {
+void FakeAudioCaptureModule::Process() {
   last_process_time_ms_ = rtc::Time();
-  return 0;
 }
 
 int32_t FakeAudioCaptureModule::ActiveAudioLayer(
     AudioLayer* /*audio_layer*/) const {
   ASSERT(false);
   return 0;
 }
 
 webrtc::AudioDeviceModule::ErrorCode FakeAudioCaptureModule::LastError() const {
   ASSERT(false);
@@ skipping 617 matching lines @@
                                               kNumberOfChannels,
                                               kSamplesPerSecond, kTotalDelayMs,
                                               kClockDriftMs, current_mic_level,
                                               key_pressed,
                                               current_mic_level) != 0) {
     ASSERT(false);
   }
   SetMicrophoneVolume(current_mic_level);
 }