Web MIDI: make MidiManagerMac notify device connections

media/midi/midi_port_info.cc

Index: media/midi/midi_port_info.cc
diff --git a/media/midi/midi_port_info.cc b/media/midi/midi_port_info.cc
index 02b4aa9ba7d8759d4d043a865e95a1f42dbeba76..473148a807718e71cec07a5cf6dc1622ec5aa107 100644
--- a/media/midi/midi_port_info.cc
+++ b/media/midi/midi_port_info.cc
@@ -11,11 +11,13 @@ MidiPortInfo::MidiPortInfo() {}
 MidiPortInfo::MidiPortInfo(const std::string& in_id,
                            const std::string& in_manufacturer,
                            const std::string& in_name,
-                           const std::string& in_version)
+                           const std::string& in_version,
+                           bool connected)
     : id(in_id),
       manufacturer(in_manufacturer),
       name(in_name),
-      version(in_version) {}
+      version(in_version),
+      connected(connected) {}
 
 MidiPortInfo::~MidiPortInfo() {}
 
@@ -23,6 +25,7 @@ MidiPortInfo::MidiPortInfo(const MidiPortInfo& info)
     : id(info.id),
       manufacturer(info.manufacturer),
       name(info.name),
-      version(info.version) {}
+      version(info.version),
+      connected(info.connected) {}
 
 }  // namespace media