Re-land of: Allow paint invalidation containers to cross frame boundaries.

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 1608 matching lines @@
 {
     Page* page = frame().page();
     if (!page)
         return 0;
     return &page->chrome();
 }
 
 void FrameView::contentRectangleForPaintInvalidation(const IntRect& r)
 {
     ASSERT(paintInvalidationIsAllowed());
-    ASSERT(!m_frame->owner());
+    ASSERT(!m_frame->ownerRenderer());
 
     if (m_isTrackingPaintInvalidations) {
         IntRect paintInvalidationRect = r;
         paintInvalidationRect.move(-scrollOffset());
         m_trackedPaintInvalidationRects.append(paintInvalidationRect);
         // FIXME: http://crbug.com/368518. Eventually, invalidateContentRectangleForPaint
         // is going away entirely once all layout tests are FCM. In the short
         // term, no code should be tracking non-composited FrameView paint invalidations.
         RELEASE_ASSERT_NOT_REACHED();
     }
@@ skipping 1504 matching lines @@
 void FrameView::willRemoveScrollbar(Scrollbar* scrollbar, ScrollbarOrientation orientation)
 {
     ScrollableArea::willRemoveScrollbar(scrollbar, orientation);
     if (AXObjectCache* cache = axObjectCache()) {
         cache->remove(scrollbar);
         cache->handleScrollbarUpdate(this);
     }
 }
 
 } // namespace blink