Support Opus Ambisonics playback

media/base/output_device_info.cc

Index: media/base/output_device_info.cc
diff --git a/media/base/output_device_info.cc b/media/base/output_device_info.cc
index d1ffa4346a7425635163d37878c72c61c6e43b31..863f11b5bc009a8624b2ab3f4c18842909176f52 100644
--- a/media/base/output_device_info.cc
+++ b/media/base/output_device_info.cc
@@ -30,10 +30,15 @@ OutputDeviceInfo& OutputDeviceInfo::operator=(const OutputDeviceInfo&) =
 
 OutputDeviceInfo::~OutputDeviceInfo() {}
 
+void OutputDeviceInfo::SetIsWebAudioSource(bool value) {
+  is_webaudio_source_ = value;
+}
+
 std::string OutputDeviceInfo::AsHumanReadableString() const {
   std::ostringstream s;
   s << "device_id: " << device_id() << " device_status: " << device_status()
-    << " output_params: [ " << output_params().AsHumanReadableString() << " ]";
+    << " output_params: [ " << output_params().AsHumanReadableString() << " ]"
+    << " is_webaudio_source: " << is_webaudio_source();
   return s.str();
 }