(blink) Propagate scrolling/marginwidth/marginheight property values to child frame.

Source/core/frame/LocalFrame.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Simon Hausmann <hausmann@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  *                     2001 George Staikos <staikos@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2005 Alexey Proskuryakov <ap@nypop.com>
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
@@ skipping 167 matching lines @@
     if (ownerLayoutObject()) {
         HTMLFrameOwnerElement* owner = deprecatedLocalOwner();
         ASSERT(owner);
         // FIXME: OOPI might lead to us temporarily lying to a frame and telling it
         // that it's owned by a FrameOwner that knows nothing about it. If we're
         // lying to this frame, don't let it clobber the existing widget.
         if (owner->contentFrame() == this)
             owner->setWidget(frameView);
     }
 
-    if (HTMLFrameOwnerElement* owner = deprecatedLocalOwner())
-        view()->setCanHaveScrollbars(owner->scrollingMode() != ScrollbarAlwaysOff);
+    if (owner())
+        view()->setCanHaveScrollbars(owner()->scrollingMode() != ScrollbarAlwaysOff);
 }
 
 LocalFrame::~LocalFrame()
 {
     // Verify that the FrameView has been cleared as part of detaching
     // the frame owner.
     ASSERT(!m_view);
 #if !ENABLE(OILPAN)
     // Oilpan: see setDOMWindow() comment why it is acceptable not to
     // explicitly call setDOMWindow() here.
@@ skipping 654 matching lines @@
 {
     if (isLocalRoot())
         m_instrumentingAgents = InstrumentingAgents::create();
     else
         m_instrumentingAgents = localFrameRoot()->m_instrumentingAgents;
 }
 
 DEFINE_WEAK_IDENTIFIER_MAP(LocalFrame);
 
 } // namespace blink