Web MIDI: introduce WebMIDIClient API to request a permission

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 15 matching lines @@
  * 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.
  */
 
 #include "config.h"
 #include "modules/webmidi/MIDIAccess.h"
 
 #include "core/dom/DOMError.h"
 #include "core/dom/ExceptionCode.h"
+#include "core/dom/ScriptExecutionContext.h"
 #include "modules/webmidi/MIDIAccessPromise.h"
 #include "modules/webmidi/MIDIConnectionEvent.h"
 #include "modules/webmidi/MIDIInput.h"
 #include "modules/webmidi/MIDIOutput.h"
 #include "modules/webmidi/MIDIPort.h"
+#include "weborigin/SecurityOrigin.h"
 
 namespace WebCore {
 
 PassRefPtr<MIDIAccess> MIDIAccess::create(ScriptExecutionContext* context, MIDIAccessPromise* promise)
 {
     RefPtr<MIDIAccess> midiAccess(adoptRef(new MIDIAccess(context, promise)));
     midiAccess->suspendIfNeeded();
     return midiAccess.release();
 }
 
 MIDIAccess::~MIDIAccess()
 {
     stop();
 }
 
 MIDIAccess::MIDIAccess(ScriptExecutionContext* context, MIDIAccessPromise* promise)
     : ActiveDOMObject(context)
     , m_promise(promise)
     , m_hasAccess(false)
 {
     ScriptWrappable::init(this);
     m_accessor = MIDIAccessor::create(this);
-    m_accessor->requestAccess(promise->options()->sysexEnabled);
+    m_accessor->requestAccess(context->securityOrigin()->toString(), promise->options()->sysexEnabled);
 }
 
 void MIDIAccess::didAddInputPort(const String& id, const String& manufacturer, const String& name, const String& version)
 {
     ASSERT(isMainThread());
 
     m_inputs.append(MIDIInput::create(scriptExecutionContext(), id, manufacturer, name, version));
 }
 
 void MIDIAccess::didAddOutputPort(const String& id, const String& manufacturer, const String& name, const String& version)
@@ skipping 27 matching lines @@
     if (m_hasAccess && portIndex < m_inputs.size())
         m_inputs[portIndex]->didReceiveMIDIData(portIndex, data, length, timeStamp);
 }
 
 void MIDIAccess::stop()
 {
     m_hasAccess = false;
 }
 
 } // namespace WebCore