ResizeObserver pt4: IDL methods

third_party/WebKit/Source/core/observer/ResizeObserverEntry.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/ResizeObserverEntry.h"
 
 #include "core/dom/ClientRect.h"
-#include "core/dom/DOMRectReadOnly.h"
 #include "core/dom/Element.h"
 #include "core/layout/LayoutBox.h"
 #include "core/observer/ResizeObservation.h"
 
 namespace blink {
 
 class ResizeObservation;
 
 ResizeObserverEntry::ResizeObserverEntry(Element* target)
     : m_target(target)
 {
+    FloatSize size = FloatSize(ResizeObservation::getTargetSize(m_target));
+    FloatPoint location;
+    LayoutBox* layout = m_target ? m_target->layoutBox() : nullptr;
+    if (layout) {
+        location = FloatPoint(layout->paddingLeft(), layout->paddingTop());
+    }
+    m_contentRect = ClientRect::create(FloatRect(location, size));
+}
+
+LayoutSize ResizeObserverEntry::contentSize() const
+{
+    return LayoutSize(m_contentRect->width(), m_contentRect->height());
 }
 
 DEFINE_TRACE(ResizeObserverEntry)
 {
     visitor->trace(m_target);
     visitor->trace(m_contentRect);
 }
 
 } // namespace blink