Remove m_margins member from FrameView

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 282 matching lines @@
         setScrollbarModes(ScrollbarAuto, ScrollbarAuto);
     else
         setScrollbarModes(ScrollbarAlwaysOff, ScrollbarAlwaysOff);
     setScrollbarsSuppressed(false);
 }
 
 void FrameView::init()
 {
     reset();
 
-    m_margins = LayoutSize(-1, -1); // undefined
     m_size = LayoutSize();
 
     // Propagate the marginwidth/height and scrolling modes to the view.
     Element* ownerElement = m_frame->ownerElement();
     if (ownerElement && (ownerElement->hasTagName(frameTag) || ownerElement->hasTagName(iframeTag))) {
         HTMLFrameElementBase* frameElt = toHTMLFrameElementBase(ownerElement);
         if (frameElt->scrollingMode() == ScrollbarAlwaysOff)
             setCanHaveScrollbars(false);
-        LayoutUnit marginWidth = frameElt->marginWidth();
-        LayoutUnit marginHeight = frameElt->marginHeight();
-        if (marginWidth != -1)
-            setMarginWidth(marginWidth);
-        if (marginHeight != -1)
-            setMarginHeight(marginHeight);
     }
 }
 
 void FrameView::prepareForDetach()
 {
     RELEASE_ASSERT(!isInLayout());
 
     if (ScrollAnimator* scrollAnimator = existingScrollAnimator())
         scrollAnimator->cancelAnimations();
 
@@ skipping 43 matching lines @@
     if (oldOverlayStyle != overlayStyle)
         setScrollbarOverlayStyle(overlayStyle);
 }
 
 void FrameView::clear()
 {
     setCanBlitOnScroll(true);
 
     reset();
 
-    if (RenderPart* renderer = m_frame->ownerRenderer())
-        renderer->viewCleared();
-
     setScrollbarsSuppressed(true);
 }
 
 bool FrameView::didFirstLayout() const
 {
     return !m_firstLayout;
 }
 
 void FrameView::invalidateRect(const IntRect& rect)
 {
@@ skipping 48 matching lines @@
         return true;
     }
     return false;
 }
 
 RenderView* FrameView::renderView() const
 {
     return frame().contentRenderer();
 }
 
-void FrameView::setMarginWidth(LayoutUnit w)
-{
-    // make it update the rendering area when set
-    m_margins.setWidth(w);
-}
-
-void FrameView::setMarginHeight(LayoutUnit h)
-{
-    // make it update the rendering area when set
-    m_margins.setHeight(h);
-}
-
 void FrameView::setCanHaveScrollbars(bool canHaveScrollbars)
 {
     m_canHaveScrollbars = canHaveScrollbars;
     ScrollView::setCanHaveScrollbars(canHaveScrollbars);
 }
 
 void FrameView::updateCanHaveScrollbars()
 {
     ScrollbarMode hMode;
     ScrollbarMode vMode;
@@ skipping 3004 matching lines @@
 void FrameView::willRemoveScrollbar(Scrollbar* scrollbar, ScrollbarOrientation orientation)
 {
     ScrollableArea::willRemoveScrollbar(scrollbar, orientation);
     if (AXObjectCache* cache = axObjectCache()) {
         cache->remove(scrollbar);
         cache->handleScrollbarUpdate(this);
     }
 }
 
 } // namespace WebCore