Implicit audio output device selection for getUserMedia.

content/test/webrtc_audio_device_test.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/test/webrtc_audio_device_test.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/compiler_specific.h"
 #include "base/file_util.h"
@@ skipping 183 matching lines @@
 
 bool MAYBE_WebRTCAudioDeviceTest::Send(IPC::Message* message) {
   return channel_->Send(message);
 }
 
 void MAYBE_WebRTCAudioDeviceTest::SetAudioHardwareConfig(
     media::AudioHardwareConfig* hardware_config) {
   audio_hardware_config_ = hardware_config;
 }
 
+scoped_refptr<WebRtcAudioRenderer>
+MAYBE_WebRTCAudioDeviceTest::CreateDefaultWebRtcAudioRenderer(
+    int render_view_id) {
+  media::AudioHardwareConfig* hardware_config =
+      RenderThreadImpl::current()->GetAudioHardwareConfig();
+  int sample_rate = hardware_config->GetOutputSampleRate();
+  int frames_per_buffer = hardware_config->GetOutputBufferSize();
+
+  return new WebRtcAudioRenderer(render_view_id, 0, sample_rate,
+                                 frames_per_buffer);
+}
+
 void MAYBE_WebRTCAudioDeviceTest::InitializeIOThread(const char* thread_name) {
 #if defined(OS_WIN)
   // We initialize COM (STA) on our IO thread as is done in Chrome.
   // See BrowserProcessSubThread::Init.
   initialize_com_.reset(new base::win::ScopedCOMInitializer());
 #endif
 
   // Set the current thread as the IO thread.
   io_thread_.reset(
       new TestBrowserThread(BrowserThread::IO, base::MessageLoop::current()));
@@ skipping 156 matching lines @@
 int WebRTCTransportImpl::SendPacket(int channel, const void* data, int len) {
   return network_->ReceivedRTPPacket(channel, data, len);
 }
 
 int WebRTCTransportImpl::SendRTCPPacket(int channel, const void* data,
                                         int len) {
   return network_->ReceivedRTCPPacket(channel, data, len);
 }
 
 }  // namespace content