Initial ResizeObserver implementation

third_party/WebKit/Source/core/observer/ResizeObserverEntry.h

+// 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.
+
+#ifndef ResizeObserverEntry_h
+#define ResizeObserverEntry_h
+
+#include "bindings/core/v8/ScriptWrappable.h"
+#include "core/observer/ResizeObservation.h"
+#include "platform/heap/Handle.h"
+
+namespace blink {
+
+class Element;
+
+class ResizeObserverEntry final : public GarbageCollectedFinalized<ResizeObserverEntry>, public ScriptWrappable {
+    DEFINE_WRAPPERTYPEINFO();
+public:
+    ResizeObserverEntry(Element * target) :
+        m_target(target),
+        m_clientWidth(target->clientWidth()),
+        m_clientHeight(target->clientHeight())
+    {
+    }
+    virtual ~ResizeObserverEntry() {};

[szager1, 2016/05/23 19:49:12]

Unnecessary destructor.

[atotic1, 2016/05/25 00:15:54]

Done.

+
+    Element* target() const { return m_target.get(); }
+    int clientWidth() const { return m_clientWidth; }

[szager1, 2016/05/23 19:49:12]

s/int/float/

[atotic1, 2016/05/25 00:15:54]

Will do when clientWidth gets rewritten.

+    int clientHeight() const { return m_clientHeight; }
+
+    DECLARE_VIRTUAL_TRACE();
+
+private:
+    Member<Element> m_target;
+    int m_clientWidth;

[szager1, 2016/05/23 19:49:12]

s/int/LayoutUnit/

[atotic1, 2016/05/25 00:15:54]

Will do when clientWidth gets rewritten.

+    int m_clientHeight;
+};
+
+} // namespace blink
+
+#endif // ResizeObserverEntry_h