WebMIDI: Add MIDIOptions dictionary

Source/modules/webmidi/NavigatorWebMIDI.cpp

 /*
  * 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 52 matching lines @@
 NavigatorWebMIDI& NavigatorWebMIDI::from(Navigator& navigator)
 {
     NavigatorWebMIDI* supplement = static_cast<NavigatorWebMIDI*>(WillBeHeapSupplement<Navigator>::from(navigator, supplementName()));
     if (!supplement) {
         supplement = new NavigatorWebMIDI(navigator.frame());
         provideTo(navigator, supplementName(), adoptPtrWillBeNoop(supplement));
     }
     return *supplement;
 }
 
-ScriptPromise NavigatorWebMIDI::requestMIDIAccess(ScriptState* scriptState, Navigator& navigator, const Dictionary& options)
+ScriptPromise NavigatorWebMIDI::requestMIDIAccess(ScriptState* scriptState, Navigator& navigator, const MIDIOptions* options)
 {
     return NavigatorWebMIDI::from(navigator).requestMIDIAccess(scriptState, options);
 }
 
-ScriptPromise NavigatorWebMIDI::requestMIDIAccess(ScriptState* scriptState, const Dictionary& options)
+ScriptPromise NavigatorWebMIDI::requestMIDIAccess(ScriptState* scriptState, const MIDIOptions* options)
 {
     if (!frame() || frame()->document()->activeDOMObjectsAreStopped()) {
         RefPtr<ScriptPromiseResolver> resolver = ScriptPromiseResolver::create(scriptState);
         ScriptPromise promise = resolver->promise();
         // FIXME: Currently this rejection does not work because the context is stopped.
         resolver->reject(DOMError::create("AbortError"));
         return promise;
     }
 
-    return MIDIAccessInitializer::start(scriptState, MIDIOptions(options));
+    return MIDIAccessInitializer::start(scriptState, options);
 }
 
 } // namespace blink