ResizeObserver pt1: IDLs with stubs

third_party/WebKit/Source/core/observer/ResizeObserver.cpp

+// Copyright 2016 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 "core/observer/ResizeObserver.h"
+
+#include "core/dom/Element.h"
+#include "core/observer/ResizeObserverCallback.h"
+#include "core/observer/ResizeObserverEntry.h"
+
+namespace blink {
+
+ResizeObserver* ResizeObserver::create(Document& document, ResizeObserverCallback* callback)
+{
+    return new ResizeObserver(callback, document);
+}
+
+ResizeObserver::ResizeObserver(ResizeObserverCallback* callback, Document& document)
+{
+}
+
+void ResizeObserver::observe(Element* target)
+{
+}
+
+void ResizeObserver::unobserve(Element* target)
+{
+}
+
+void ResizeObserver::disconnect()
+{
+}
+
+DEFINE_TRACE(ResizeObserver)
+{
+}
+
+} // namespace blink