Make WebMIDI use blink Promise.

Source/bindings/v8/MIDIAccessResolver.cpp

Index: Source/bindings/v8/MIDIAccessResolver.cpp
diff --git a/Source/bindings/v8/MIDIAccessResolver.cpp b/Source/bindings/v8/MIDIAccessResolver.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..2ab428882f90185b2ad33d7f36f202a0d5b16c2f
--- /dev/null
+++ b/Source/bindings/v8/MIDIAccessResolver.cpp
@@ -0,0 +1,40 @@
+// 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