Getting rid of AudioHardwareConfig and its synchronous IPC.

content/renderer/pepper/pepper_platform_audio_output.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/pepper/pepper_platform_audio_output.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/thread_task_runner_handle.h"
 #include "build/build_config.h"
 #include "content/child/child_process.h"
 #include "content/common/media/audio_messages.h"
 #include "content/renderer/media/audio_message_filter.h"
 #include "content/renderer/pepper/audio_helper.h"
 #include "content/renderer/render_thread_impl.h"
-#include "media/base/audio_hardware_config.h"
 #include "ppapi/shared_impl/ppb_audio_config_shared.h"
 
 namespace content {
 
 // static
 PepperPlatformAudioOutput* PepperPlatformAudioOutput::Create(
     int sample_rate,
     int frames_per_buffer,
     int source_render_frame_id,
     AudioHelper* client) {
@@ skipping 158 matching lines @@
     return;
 
   ipc_->CloseStream();
   ipc_.reset();
 
   Release();  // Release for the delegate, balances out the reference taken in
               // PepperPlatformAudioOutput::Create.
 }
 
 }  // namespace content