Move MIDI code to hang off WebFrame.

Source/modules/webmidi/MIDIAccess.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 156 matching lines @@
 
 void MIDIAccess::stop()
 {
     if (m_state == Stopped)
         return;
     m_accessor.clear();
     m_weakPtrFactory.revokeAll();
     if (m_state == Requesting) {
         Document* document = toDocument(executionContext());
         ASSERT(document);
-        MIDIController* controller = MIDIController::from(document->page());
+        MIDIController* controller = MIDIController::from(document->frame());
         ASSERT(controller);
         controller->cancelSysexPermissionRequest(this);
     }
     m_state = Stopped;
 }
 
 bool MIDIAccess::hasPendingActivity() const
 {
     return m_state == Requesting;
 }
@@ skipping 10 matching lines @@
     ScriptPromise promise = m_resolver->promise();
     promise.then(PostAction::create(scriptState->isolate(), m_weakPtrFactory.createWeakPtr(), Resolved),
         PostAction::create(scriptState->isolate(), m_weakPtrFactory.createWeakPtr(), Stopped));
 
     if (!m_options.sysex) {
         m_accessor->startSession();
         return promise;
     }
     Document* document = toDocument(executionContext());
     ASSERT(document);
-    MIDIController* controller = MIDIController::from(document->page());
+    MIDIController* controller = MIDIController::from(document->frame());
     if (controller) {
         controller->requestSysexPermission(this);
     } else {
         m_resolver->reject(DOMError::create("SecurityError"));
     }
     return promise;
 }
 
 void MIDIAccess::doPostAction(State state)
 {
     ASSERT(m_state == Requesting);
     ASSERT(state == Resolved || state == Stopped);
     if (state == Stopped) {
         m_accessor.clear();
     }
     m_weakPtrFactory.revokeAll();
     m_state = state;
 }
 
 void MIDIAccess::trace(Visitor* visitor)
 {
     visitor->trace(m_inputs);
     visitor->trace(m_outputs);
     EventTargetWithInlineData::trace(visitor);
 }
 
 } // namespace WebCore