Return refererence from InlineBox::root()

Source/core/rendering/RenderBlock.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. 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
@@ skipping 1595 matching lines @@
 
 void RenderBlock::simplifiedNormalFlowLayout()
 {
     if (childrenInline()) {
         ListHashSet<RootInlineBox*> lineBoxes;
         for (InlineWalker walker(this); !walker.atEnd(); walker.advance()) {
             RenderObject* o = walker.current();
             if (!o->isOutOfFlowPositioned() && (o->isReplaced() || o->isFloating())) {
                 o->layoutIfNeeded();
                 if (toRenderBox(o)->inlineBoxWrapper()) {
-                    RootInlineBox* box = toRenderBox(o)->inlineBoxWrapper()->root();
-                    lineBoxes.add(box);
+                    RootInlineBox& box = toRenderBox(o)->inlineBoxWrapper()->root();
+                    lineBoxes.add(&box);
                 }
             } else if (o->isText() || (o->isRenderInline() && !walker.atEndOfInline())) {
                 o->clearNeedsLayout();
             }
         }
 
         // FIXME: Glyph overflow will get lost in this case, but not really a big deal.
         GlyphOverflowAndFallbackFontsMap textBoxDataMap;
         for (ListHashSet<RootInlineBox*>::const_iterator it = lineBoxes.begin(); it != lineBoxes.end(); ++it) {
             RootInlineBox* box = *it;
@@ skipping 1529 matching lines @@
                 if (box->isLineBreak()) {
                     if (InlineBox* newBox = box->nextLeafChildIgnoringLineBreak())
                         box = newBox;
                 }
                 // y coordinate is above first root line box, so return the start of the first
                 return PositionWithAffinity(positionForBox(box, true), DOWNSTREAM);
             }
         }
 
         // pass the box a top position that is inside it
-        LayoutPoint point(pointInLogicalContents.x(), closestBox->root()->blockDirectionPointInLine());
+        LayoutPoint point(pointInLogicalContents.x(), closestBox->root().blockDirectionPointInLine());
         if (!isHorizontalWritingMode())
             point = point.transposedPoint();
         if (closestBox->renderer().isReplaced())
             return positionForPointRespectingEditingBoundaries(this, &toRenderBox(closestBox->renderer()), point);
         return closestBox->renderer().positionForPoint(point);
     }
 
     if (lastRootBoxWithChildren) {
         // We hit this case for Mac behavior when the Y coordinate is below the last box.
         ASSERT(moveCaretToBoundary);
@@ skipping 1840 matching lines @@
 void RenderBlock::showLineTreeAndMark(const InlineBox* markedBox1, const char* markedLabel1, const InlineBox* markedBox2, const char* markedLabel2, const RenderObject* obj) const
 {
     showRenderObject();
     for (const RootInlineBox* root = firstRootBox(); root; root = root->nextRootBox())
         root->showLineTreeAndMark(markedBox1, markedLabel1, markedBox2, markedLabel2, obj, 1);
 }
 
 #endif
 
 } // namespace WebCore