Adds AudioDevice factory for all audio clients in Chrome

content/test/webrtc_audio_device_test.h

Index: content/test/webrtc_audio_device_test.h
diff --git a/content/test/webrtc_audio_device_test.h b/content/test/webrtc_audio_device_test.h
index 6045d79ab10dd4e91949e55113926c89da83d6c9..9c69189b37a37ecdc8b3d09de58bfb6c1cd1b02e 100644
--- a/content/test/webrtc_audio_device_test.h
+++ b/content/test/webrtc_audio_device_test.h
@@ -19,6 +19,7 @@
 #include "testing/gtest/include/gtest/gtest.h"
 #include "third_party/webrtc/common_types.h"
 
+class AudioDeviceFactoryInterface;
 class AudioInputRendererHost;
 class AudioRendererHost;
 class RenderThreadImpl;
@@ -160,6 +161,11 @@ class WebRTCAudioDeviceTest
     return *media_observer_.get();
   }
 
+  // Convenience getter for the audio device factory.
+  AudioDeviceFactoryInterface* audio_device_factory() const {
+    return audio_device_factory_.get();
+  }
+
   std::string GetTestDataPath(const FilePath::StringType& file_name);
 
   scoped_ptr<ReplaceContentClientRenderer> saved_content_renderer_;
@@ -173,6 +179,7 @@ class WebRTCAudioDeviceTest
   scoped_ptr<net::URLRequestContext> test_request_context_;
   scoped_ptr<content::ResourceContext> resource_context_;
   scoped_ptr<IPC::Channel> channel_;
+  scoped_ptr<AudioDeviceFactoryInterface> audio_device_factory_;
   scoped_refptr<AudioRendererHost> audio_render_host_;
   scoped_refptr<AudioInputRendererHost> audio_input_renderer_host_;