Convert some Shape code to use references

Source/core/rendering/line/LineWidth.cpp

 /*
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above
  *    copyright notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 57 matching lines @@
 
 void LineWidth::shrinkAvailableWidthForNewFloatIfNeeded(FloatingObject* newFloat)
 {
     LayoutUnit height = m_block.logicalHeight();
     if (height < m_block.logicalTopForFloat(newFloat) || height >= m_block.logicalBottomForFloat(newFloat))
         return;
 
     ShapeOutsideInfo* shapeOutsideInfo = newFloat->renderer()->shapeOutsideInfo();
     if (shapeOutsideInfo) {
         LayoutUnit lineHeight = m_block.lineHeight(m_isFirstLine, m_block.isHorizontalWritingMode() ? HorizontalLine : VerticalLine, PositionOfInteriorLineBoxes);
-        shapeOutsideInfo->updateDeltasForContainingBlockLine(&m_block, newFloat, m_block.logicalHeight(), lineHeight);
+        shapeOutsideInfo->updateDeltasForContainingBlockLine(m_block, *newFloat, m_block.logicalHeight(), lineHeight);
     }
 
     if (newFloat->type() == FloatingObject::FloatLeft) {
         float newLeft = m_block.logicalRightForFloat(newFloat);
         if (shapeOutsideInfo) {
             if (shapeOutsideInfo->lineOverlapsShape())
                 newLeft += shapeOutsideInfo->rightMarginBoxDelta();
             else // Per the CSS Shapes spec, If the line doesn't overlap the shape, then ignore this shape for this line.
                 newLeft = m_left;
         }
@@ skipping 116 matching lines @@
 
         newLineWidth = availableWidthAtOffset(m_block, floatLogicalBottom, shouldIndentText(), newLineLeft, newLineRight);
         lastFloatLogicalBottom = floatLogicalBottom;
 
         if (newLineWidth >= m_uncommittedWidth) {
             ShapeInsideInfo* shapeInsideInfo = m_block.layoutShapeInsideInfo();
             if (shapeInsideInfo) {
                 // To safely update our shape segments, the current segment must be the first in this line, so committedWidth has to be 0
                 ASSERT(!m_committedWidth);
 
-                LayoutUnit logicalOffsetFromShapeContainer = m_block.logicalOffsetFromShapeAncestorContainer(shapeInsideInfo->owner()).height();
+                LayoutUnit logicalOffsetFromShapeContainer = m_block.logicalOffsetFromShapeAncestorContainer(&shapeInsideInfo->owner()).height();
                 LayoutUnit lineHeight = m_block.lineHeight(false, m_block.isHorizontalWritingMode() ? HorizontalLine : VerticalLine, PositionOfInteriorLineBoxes);
                 shapeInsideInfo->updateSegmentsForLine(lastFloatLogicalBottom + logicalOffsetFromShapeContainer, lineHeight);
                 updateCurrentShapeSegment();
                 updateAvailableWidth();
             }
             break;
         }
     }
     updateLineDimension(lastFloatLogicalBottom, newLineWidth, newLineLeft, newLineRight);
 }
 
 void LineWidth::updateCurrentShapeSegment()
 {
     if (ShapeInsideInfo* shapeInsideInfo = m_block.layoutShapeInsideInfo())
         m_segment = shapeInsideInfo->currentSegment();
 }
 
 void LineWidth::computeAvailableWidthFromLeftAndRight()
 {
     m_availableWidth = max(0.0f, m_right - m_left) + m_overhangWidth;
 }
 
 }