Rename Document::ownerElement to localOwner and fix main frame checks.

third_party/WebKit/Source/core/layout/LayoutView.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 482 matching lines @@
         adjustOffsetForFixedPosition(rect);
 
     // Apply our transform if we have one (because of full page zooming).
     if (!ancestor && layer() && layer()->transform())
         rect = layer()->transform()->mapRect(rect);
 
     ASSERT(ancestor);
     if (ancestor == this)
         return true;
 
-    Element* owner = document().ownerElement();
+    Element* owner = document().localOwner();
     if (!owner)
         return true;
 
     if (LayoutBox* obj = owner->layoutBox()) {
         if (!(mode & InputIsInFrameCoordinates)) {
             // Intersect the viewport with the paint invalidation rect.
             LayoutRect viewRectangle = viewRect();
             if (visualRectFlags & EdgeInclusive) {
                 if (!rect.inclusiveIntersect(viewRectangle))
                     return false;
@@ skipping 497 matching lines @@
     for (auto& media : m_mediaForPositionNotification) {
         media->notifyPositionMayHaveChanged(visibleRect);
     }
 }
 
 void LayoutView::updateFromStyle()
 {
     LayoutBlockFlow::updateFromStyle();
 
     // LayoutView of the main frame is responsible for painting base background.
-    if (!document().ownerElement())
+    if (document().isInMainFrame())
         setHasBoxDecorationBackground(true);
 }
 
 bool LayoutView::allowsOverflowClip() const
 {
     return document().settings() && document().settings()->rootLayerScrolls();
 }
 
 ScrollResult LayoutView::scroll(ScrollGranularity granularity, const FloatSize& delta)
 {
     // TODO(bokan): This should never get called on the main frame but it
     // currently does via the Windows pan scrolling path. That should go through
     // a more normalized EventHandler-like scrolling path and we should
     // ASSERT(!frame()->isMainFrame()) here. All main frame scrolling should
     // be handled by the ViewportScrollCallback.
 
     if (!frameView())
         return ScrollResult(false, false, delta.width(), delta.height());
 
     return frameView()->getScrollableArea()->userScroll(granularity, delta);
 }
 
 } // namespace blink