Add a virtual beamforming audio device on ChromeOS.

content/common/media/media_param_traits.h

Index: content/common/media/media_param_traits.h
diff --git a/content/common/media/media_param_traits.h b/content/common/media/media_param_traits.h
index f035b402c69489ec9d0557614644440798d11165..14233dc927d6084381282b8009bf021554d99b4f 100644
--- a/content/common/media/media_param_traits.h
+++ b/content/common/media/media_param_traits.h
@@ -11,6 +11,7 @@
 
 namespace media {
 class AudioParameters;
+class Point;
 struct VideoCaptureFormat;
 }
 
@@ -25,6 +26,14 @@ struct CONTENT_EXPORT ParamTraits<media::AudioParameters> {
 };
 
 template <>
+struct CONTENT_EXPORT ParamTraits<media::Point> {
+  typedef media::Point param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
+  static void Log(const param_type& p, std::string* l);
+};
+
+template <>
 struct CONTENT_EXPORT ParamTraits<media::VideoCaptureFormat> {
   typedef media::VideoCaptureFormat param_type;
   static void Write(Message* m, const param_type& p);