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

third_party/WebKit/Source/core/frame/FrameView.cpp

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999 Lars Knoll <knoll@kde.org>
  *                     1999 Antti Koivisto <koivisto@kde.org>
  *                     2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
  *           (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
@@ skipping 237 matching lines @@
     }
 }
 
 void FrameView::init()
 {
     reset();
 
     m_size = LayoutSize();
 
     // Propagate the marginwidth/height and scrolling modes to the view.
-    // FIXME: Do we need to do this for OOPI?
-    Element* ownerElement = m_frame->deprecatedLocalOwner();
-    if (ownerElement && (isHTMLFrameElement(*ownerElement) || isHTMLIFrameElement(*ownerElement))) {
-        HTMLFrameElementBase* frameElt = toHTMLFrameElementBase(ownerElement);
-        if (frameElt->scrollingMode() == ScrollbarAlwaysOff)
-            setCanHaveScrollbars(false);
-    }
+    if (m_frame->owner() && m_frame->owner()->scrollingMode() == ScrollbarAlwaysOff)
+        setCanHaveScrollbars(false);
 }
 
 void FrameView::dispose()
 {
     RELEASE_ASSERT(!isInPerformLayout());
 
     if (ScrollAnimatorBase* scrollAnimator = existingScrollAnimator())
         scrollAnimator->cancelAnimations();
     cancelProgrammaticScrollAnimation();
 
@@ skipping 299 matching lines @@
 
 void FrameView::calculateScrollbarModes(ScrollbarMode& hMode, ScrollbarMode& vMode, ScrollbarModesCalculationStrategy strategy)
 {
 #define RETURN_SCROLLBAR_MODE(mode) \
     { \
         hMode = vMode = mode; \
         return; \
     }
 
     // Setting scrolling="no" on an iframe element disables scrolling.
-    // FIXME: Handle this for OOPI?
-    if (const HTMLFrameOwnerElement* owner = m_frame->deprecatedLocalOwner()) {
-        if (owner->scrollingMode() == ScrollbarAlwaysOff)
-            RETURN_SCROLLBAR_MODE(ScrollbarAlwaysOff);
-    }
+    if (m_frame->owner() && m_frame->owner()->scrollingMode() == ScrollbarAlwaysOff)
+        RETURN_SCROLLBAR_MODE(ScrollbarAlwaysOff);
 
     // Framesets can't scroll.
     Node* body = m_frame->document()->body();
     if (isHTMLFrameSetElement(body) && body->layoutObject())
         RETURN_SCROLLBAR_MODE(ScrollbarAlwaysOff);
 
     // Scrollbars can be disabled by FrameView::setCanHaveScrollbars.
     if (!m_canHaveScrollbars && strategy != RulesFromWebContentOnly)
         RETURN_SCROLLBAR_MODE(ScrollbarAlwaysOff);
 
@@ skipping 3487 matching lines @@
 }
 
 bool FrameView::canThrottleRendering() const
 {
     if (!RuntimeEnabledFeatures::renderingPipelineThrottlingEnabled())
         return false;
     return m_hiddenForThrottling && m_crossOriginForThrottling;
 }
 
 } // namespace blink