Propagate scrolling/marginwidth/marginheight property values to child frame.

third_party/WebKit/Source/core/html/HTMLFrameElementBase.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Simon Hausmann <hausmann@kde.org>
  * Copyright (C) 2004, 2006, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #ifndef HTMLFrameElementBase_h
 #define HTMLFrameElementBase_h
 
 #include "core/html/HTMLFrameOwnerElement.h"
-#include "platform/scroll/ScrollTypes.h"
 
 namespace blink {
 
 class HTMLFrameElementBase : public HTMLFrameOwnerElement {
 public:
-    ScrollbarMode scrollingMode() const final { return m_scrolling; }
+    bool canContainRangeEndPoint() const final { return false; }
 
-    int marginWidth() const { return m_marginWidth; }
-    int marginHeight() const { return m_marginHeight; }
-
-    bool canContainRangeEndPoint() const final { return false; }
+    // FrameOwner overrides:
+    ScrollbarMode scrollingMode() const override { return m_scrollingMode; }
+    int marginWidth() const override { return m_marginWidth; }
+    int marginHeight() const override { return m_marginHeight; }
 
 protected:
     HTMLFrameElementBase(const QualifiedName&, Document&);
 
     bool isURLAllowed() const;
 
     void parseAttribute(const QualifiedName&, const AtomicString&) override;
     InsertionNotificationRequest insertedInto(ContainerNode*) override;
     void didNotifySubtreeInsertionsToDocument() final;
     void attach(const AttachContext& = AttachContext()) override;
 
     // FIXME: Remove this method once we have input routing in the browser
     // process. See http://crbug.com/339659.
     void defaultEventHandler(Event*) override;
 
+    void setScrollingMode(ScrollbarMode);
+    void setMarginWidth(int);
+    void setMarginHeight(int);
+
 private:
     bool supportsFocus() const final;
     void setFocus(bool) final;
 
     bool isURLAttribute(const Attribute&) const final;
     bool hasLegalLinkAttribute(const QualifiedName&) const final;
     bool isHTMLContentAttribute(const Attribute&) const final;
 
     bool areAuthorShadowsAllowed() const final { return false; }
 
     void setLocation(const String&);
     void setNameAndOpenURL();
     void openURL(bool replaceCurrentItem = true);
 
+    void frameOwnerPropertiesChanged();
+
+    ScrollbarMode m_scrollingMode;
+    int m_marginWidth;
+    int m_marginHeight;
+
     AtomicString m_URL;
     AtomicString m_frameName;
-
-    ScrollbarMode m_scrolling;
-
-    int m_marginWidth;
-    int m_marginHeight;
 };
 
 inline bool isHTMLFrameElementBase(const HTMLElement& element)
 {
     return isHTMLFrameElement(element) || isHTMLIFrameElement(element);
 }
 
 DEFINE_HTMLELEMENT_TYPE_CASTS_WITH_FUNCTION(HTMLFrameElementBase);
 
 } // namespace blink
 
 #endif // HTMLFrameElementBase_h