Web MIDI: make naming convention be consistent

media/midi/midi_port_info.h

Index: media/midi/midi_port_info.h
diff --git a/media/midi/midi_port_info.h b/media/midi/midi_port_info.h
index f4afb49a4f5f724902261d65ebdb739036bf7dff..1fe3bcaf0fc972891e3469df5135a32561265f51 100644
--- a/media/midi/midi_port_info.h
+++ b/media/midi/midi_port_info.h
@@ -13,15 +13,15 @@
 
 namespace media {
 
-struct MEDIA_EXPORT MIDIPortInfo {
-  MIDIPortInfo();
-  MIDIPortInfo(const std::string& in_id,
+struct MEDIA_EXPORT MidiPortInfo {
+  MidiPortInfo();
+  MidiPortInfo(const std::string& in_id,
                const std::string& in_manufacturer,
                const std::string& in_name,
                const std::string& in_version);
 
-  MIDIPortInfo(const MIDIPortInfo& info);
-  ~MIDIPortInfo();
+  MidiPortInfo(const MidiPortInfo& info);
+  ~MidiPortInfo();
 
   std::string id;
   std::string manufacturer;
@@ -29,7 +29,7 @@ struct MEDIA_EXPORT MIDIPortInfo {
   std::string version;
 };
 
-typedef std::vector<MIDIPortInfo> MIDIPortInfoList;
+typedef std::vector<MidiPortInfo> MidiPortInfoList;
 
 }  // namespace media