Web MIDI: dispatch MIDIConnectionEvent

Source/modules/webmidi/MIDIAccess.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 46 matching lines @@
     {
         MIDIAccess* access = new MIDIAccess(accessor, sysexEnabled, ports, executionContext);
         access->suspendIfNeeded();
         return access;
     }
     virtual ~MIDIAccess();
 
     MIDIInputMap* inputs() const;
     MIDIOutputMap* outputs() const;
 
-    DEFINE_ATTRIBUTE_EVENT_LISTENER(connect);
-    DEFINE_ATTRIBUTE_EVENT_LISTENER(disconnect);
+    DEFINE_ATTRIBUTE_EVENT_LISTENER(statechange);
 
     bool sysexEnabled() const { return m_sysexEnabled; }
 
     // EventTarget
     virtual const AtomicString& interfaceName() const override { return EventTargetNames::MIDIAccess; }
     virtual ExecutionContext* executionContext() const override { return ActiveDOMObject::executionContext(); }
 
     // ActiveDOMObject
     virtual void stop() override;
 
@@ skipping 20 matching lines @@
 
     OwnPtr<MIDIAccessor> m_accessor;
     bool m_sysexEnabled;
     HeapVector<Member<MIDIInput>> m_inputs;
     HeapVector<Member<MIDIOutput>> m_outputs;
 };
 
 } // namespace blink
 
 #endif // MIDIAccess_h