Add Module and Application interfaces

sky/engine/core/app/AbstractModule.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 "core/app/AbstractModule.h"
+
+namespace blink {
+
+AbstractModule::AbstractModule(ExecutionContext* context, Document* document, const String& url)
+    : ContextLifecycleObserver(context)
+    , m_document(document)
+    , m_url(url)
+{
+}
+
+AbstractModule::~AbstractModule()
+{
+}
+
+ExecutionContext* AbstractModule::executionContext() const
+{
+    return ContextLifecycleObserver::executionContext();
+}
+
+} // namespace blink