Ensures that WebRTC works for device selection using a different sample rate than default

content/renderer/media/media_stream_dependency_factory.h

Index: content/renderer/media/media_stream_dependency_factory.h
diff --git a/content/renderer/media/media_stream_dependency_factory.h b/content/renderer/media/media_stream_dependency_factory.h
index 97af73daf467946c20844925766fbae7da3a3a4c..69dfbf88a15f81b0e5de05789c5c39b861403cb4 100644
--- a/content/renderer/media/media_stream_dependency_factory.h
+++ b/content/renderer/media/media_stream_dependency_factory.h
@@ -46,6 +46,7 @@ class IpcNetworkManager;
 class IpcPacketSocketFactory;
 class VideoCaptureImplManager;
 class WebRtcAudioDeviceImpl;
+struct StreamDeviceInfo;
 
 // Object factory for RTC MediaStreams and RTC PeerConnections.
 class CONTENT_EXPORT MediaStreamDependencyFactory
@@ -129,6 +130,11 @@ class CONTENT_EXPORT MediaStreamDependencyFactory
                         bool is_screen_cast,
                         const webrtc::MediaConstraintsInterface* constraints);
 
+  // Initializes the source using audio parameters for the selected
+  // capture device and specifies which capture device to use as capture
+  // source.
+  virtual bool InitializeAudioSource(const StreamDeviceInfo& device_info);
+
   // Asks the PeerConnection factory to create a Local VideoTrack object.
   virtual scoped_refptr<webrtc::VideoTrackInterface>
       CreateLocalVideoTrack(const std::string& label,
@@ -141,7 +147,6 @@ class CONTENT_EXPORT MediaStreamDependencyFactory
 
   virtual bool EnsurePeerConnectionFactory();
   virtual bool PeerConnectionFactoryCreated();
-  virtual void SetAudioDeviceSessionId(int session_id);
 
  private:
   // Creates and deletes |pc_factory_|, which in turn is used for