Remove m_margins member from FrameView

Source/core/rendering/RenderEmbeddedObject.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Simon Hausmann <hausmann@kde.org>
  *           (C) 2000 Stefan Schimanski (1Stein@gmx.de)
  * Copyright (C) 2004, 2005, 2006, 2008, 2009, 2010 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.
@@ skipping 227 matching lines @@
 
     childBox->setLocation(LayoutPoint(borderLeft(), borderTop()) + LayoutSize(paddingLeft(), paddingTop()));
     childBox->style()->setHeight(Length(newSize.height(), Fixed));
     childBox->style()->setWidth(Length(newSize.width(), Fixed));
     childBox->forceLayout();
     clearNeedsLayout();
 
     statePusher.pop();
 }
 
-void RenderEmbeddedObject::viewCleared()
-{
-    // This is required for <object> elements whose contents are rendered by WebCore (e.g. src="foo.html").
-    if (node() && widget() && widget()->isFrameView()) {
-        FrameView* view = toFrameView(widget());
-        int marginWidth = -1;
-        int marginHeight = -1;
-        if (node()->hasTagName(iframeTag)) {
-            HTMLIFrameElement* frame = toHTMLIFrameElement(node());
-            marginWidth = frame->marginWidth();
-            marginHeight = frame->marginHeight();
-        }
-        if (marginWidth != -1)
-            view->setMarginWidth(marginWidth);
-        if (marginHeight != -1)
-            view->setMarginHeight(marginHeight);
-    }
-}
-
 bool RenderEmbeddedObject::scroll(ScrollDirection direction, ScrollGranularity granularity, float)
 {
     return false;
 }
 
 bool RenderEmbeddedObject::canHaveChildren() const
 {
     return false;
 }
 
 }