Revert of Make WebMIDI use blink Promise.

Source/bindings/v8/MIDIAccessResolver.cpp

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "config.h"
-#include "bindings/v8/MIDIAccessResolver.h"
-
-#include "bindings/v8/ScriptPromiseResolver.h"
-#include "bindings/v8/V8Binding.h"
-#include <v8.h>
-
-namespace WebCore {
-
-MIDIAccessResolver::MIDIAccessResolver(PassRefPtr<ScriptPromiseResolver> resolver, v8::Isolate* isolate)
-    : m_resolver(resolver)
-    , m_world(DOMWrapperWorld::current(isolate))
-{
-}
-
-MIDIAccessResolver::~MIDIAccessResolver()
-{
-}
-
-void MIDIAccessResolver::resolve(MIDIAccess* access, ExecutionContext* executionContext)
-{
-    v8::HandleScope handleScope(toIsolate(executionContext));
-    v8::Context::Scope contextScope(toV8Context(executionContext, m_world.get()));
-
-    m_resolver->resolve(access, executionContext);
-}
-
-void MIDIAccessResolver::reject(DOMError* error, ExecutionContext* executionContext)
-{
-    v8::HandleScope handleScope(toIsolate(executionContext));
-    v8::Context::Scope contextScope(toV8Context(executionContext, m_world.get()));
-
-    m_resolver->reject(error, executionContext);
-}
-
-} // namespace WebCore