Web MIDI: add open() and close() to MIDIPort

Source/modules/webmidi/MIDIInput.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 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef MIDIInput_h
 #define MIDIInput_h
 
 #include "modules/EventTargetModules.h"
+#include "modules/webmidi/MIDIAccessor.h"
 #include "modules/webmidi/MIDIPort.h"
 
 namespace blink {
 
 class MIDIAccess;
 
 class MIDIInput final : public MIDIPort {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static MIDIInput* create(MIDIAccess*, const String& id, const String& manufacturer, const String& name, const String& version, bool isActive);
+    static MIDIInput* create(MIDIAccess*, const String& id, const String& manufacturer, const String& name, const String& version, MIDIAccessor::MIDIPortState);
     virtual ~MIDIInput() { }
 
     DEFINE_ATTRIBUTE_EVENT_LISTENER(midimessage);
 
     // EventTarget
     virtual const AtomicString& interfaceName() const override { return EventTargetNames::MIDIInput; }
 
     // |timeStamp| is a DOMHighResTimeStamp in the time coordinate system of performance.now().
     void didReceiveMIDIData(unsigned portIndex, const unsigned char* data, size_t length, double timeStamp);
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
-    MIDIInput(MIDIAccess*, const String& id, const String& manufacturer, const String& name, const String& version, bool isActive);
+    MIDIInput(MIDIAccess*, const String& id, const String& manufacturer, const String& name, const String& version, MIDIAccessor::MIDIPortState);
 };
 
 } // namespace blink
 
 #endif // MIDIInput_h