Use references in RenderBlock and RenderBlockFlow methods

Source/core/rendering/RenderBox.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. 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
@@ skipping 1874 matching lines @@
         LayoutUnit preferredWidth = computeLogicalWidthUsing(MainOrPreferredSize, styleToUse->logicalWidth(), containerWidthInInlineDirection, cb);
         computedValues.m_extent = constrainLogicalWidthByMinMax(preferredWidth, containerWidthInInlineDirection, cb);
     }
 
     // Margin calculations.
     computeMarginsForDirection(InlineDirection, cb, containerLogicalWidth, computedValues.m_extent, computedValues.m_margins.m_start,
         computedValues.m_margins.m_end, style()->marginStart(), style()->marginEnd());
 
     if (!hasPerpendicularContainingBlock && containerLogicalWidth && containerLogicalWidth != (computedValues.m_extent + computedValues.m_margins.m_start + computedValues.m_margins.m_end)
         && !isFloating() && !isInline() && !cb->isFlexibleBoxIncludingDeprecated() && !cb->isRenderGrid()) {
-        LayoutUnit newMargin = containerLogicalWidth - computedValues.m_extent - cb->marginStartForChild(this);
+        LayoutUnit newMargin = containerLogicalWidth - computedValues.m_extent - cb->marginStartForChild(*this);
         bool hasInvertedDirection = cb->style()->isLeftToRightDirection() != style()->isLeftToRightDirection();
         if (hasInvertedDirection)
             computedValues.m_margins.m_start = newMargin;
         else
             computedValues.m_margins.m_end = newMargin;
     }
 
     if (styleToUse->textAutosizingMultiplier() != 1 && styleToUse->marginStart().type() == Fixed) {
         Node* parentNode = generatingNode();
         if (parentNode && (isHTMLOListElement(*parentNode) || isHTMLUListElement(*parentNode))) {
@@ skipping 680 matching lines @@
 
 void RenderBox::computeAndSetBlockDirectionMargins(const RenderBlock* containingBlock)
 {
     LayoutUnit marginBefore;
     LayoutUnit marginAfter;
     computeMarginsForDirection(BlockDirection, containingBlock, containingBlockLogicalWidthForContent(), logicalHeight(), marginBefore, marginAfter,
         style()->marginBeforeUsing(containingBlock->style()),
         style()->marginAfterUsing(containingBlock->style()));
     // Note that in this 'positioning phase' of the layout we are using the containing block's writing mode rather than our own when calculating margins.
     // See http://www.w3.org/TR/2014/CR-css-writing-modes-3-20140320/#orthogonal-flows
-    containingBlock->setMarginBeforeForChild(this, marginBefore);
-    containingBlock->setMarginAfterForChild(this, marginAfter);
+    containingBlock->setMarginBeforeForChild(*this, marginBefore);
+    containingBlock->setMarginAfterForChild(*this, marginAfter);
 }
 
 LayoutUnit RenderBox::containingBlockLogicalWidthForPositioned(const RenderBoxModelObject* containingBlock, bool checkForPerpendicularWritingMode) const
 {
     if (checkForPerpendicularWritingMode && containingBlock->isHorizontalWritingMode() != isHorizontalWritingMode())
         return containingBlockLogicalHeightForPositioned(containingBlock, false);
 
     // Use viewport as container for top-level fixed-position elements.
     if (style()->position() == FixedPosition && containingBlock->isRenderView()) {
         const RenderView* view = toRenderView(containingBlock);
@@ skipping 1826 matching lines @@
 
     setLogicalTop(oldLogicalTop);
     setLogicalWidth(oldLogicalWidth);
     setMarginLeft(oldMarginLeft);
     setMarginRight(oldMarginRight);
 
     return borderBox;
 }
 
 } // namespace blink