Use NewScriptState in MIDIAccessResolver, CustomElementLifecycleCallbacks and V8MutationCallbacks

Source/bindings/v8/V8PerContextData.cpp

Index: Source/bindings/v8/V8PerContextData.cpp
diff --git a/Source/bindings/v8/V8PerContextData.cpp b/Source/bindings/v8/V8PerContextData.cpp
index 75602c07a20ce5df1cd1184769387834470f13e2..e8b1cb979bc23ee5e1ab7345165111eb4d487538 100644
--- a/Source/bindings/v8/V8PerContextData.cpp
+++ b/Source/bindings/v8/V8PerContextData.cpp
@@ -78,6 +78,11 @@ V8PerContextData::~V8PerContextData()
     disposeMapWithUnsafePersistentValues(&m_constructorMap);
 }
 
+PassOwnPtr<V8PerContextData> V8PerContextData::create(v8::Handle<v8::Context> context, PassRefPtr<DOMWrapperWorld> world)
+{
+    return adoptPtr(new V8PerContextData(context, world));
+}
+
 V8PerContextData* V8PerContextData::from(v8::Handle<v8::Context> context)
 {
     return NewScriptState::from(context)->perContextData();