Web MIDI API back-end (work-in-progress)

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 90d7258604574760a75fde913a5eb963f46c3a5f..b1b4912c8662cc9209640919fc2c9f37effe090d 100644
--- a/content/common/media/media_param_traits.h
+++ b/content/common/media/media_param_traits.h
@@ -8,6 +8,7 @@
 #include "content/common/content_export.h"
 #include "ipc/ipc_message.h"
 #include "ipc/ipc_param_traits.h"
+#include "media/midi/midi_port_info.h"
 
 namespace media {
 class AudioParameters;
@@ -32,6 +33,13 @@ struct CONTENT_EXPORT ParamTraits<media::VideoCaptureParams> {
   static void Log(const param_type& p, std::string* l);
 };
 
+template <>
+struct CONTENT_EXPORT ParamTraits<media::MIDIPortInfoList> {
+  typedef media::MIDIPortInfoList param_type;
+  static void Write(Message* m, const param_type& p);
+  static bool Read(const Message* m, PickleIterator* iter, param_type* r);
+  static void Log(const param_type& p, std::string* l);
+};
 
 } // namespace IPC