Address regression bug report, revert the PaintInfo rect member function.

Source/core/rendering/RenderLineBoxList.cpp

 /*
  * Copyright (C) 2008 Apple Inc. 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.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 173 matching lines @@
 
     return rangeIntersectsRect(renderer, logicalTop, logicalBottom, rect, offset);
 }
 
 bool RenderLineBoxList::lineIntersectsDirtyRect(RenderBoxModelObject* renderer, InlineFlowBox* box, const PaintInfo& paintInfo, const LayoutPoint& offset) const
 {
     RootInlineBox* root = box->root();
     LayoutUnit logicalTop = min<LayoutUnit>(box->logicalTopVisualOverflow(root->lineTop()), root->selectionTop()) - renderer->maximalOutlineSize(paintInfo.phase);
     LayoutUnit logicalBottom = box->logicalBottomVisualOverflow(root->lineBottom()) + renderer->maximalOutlineSize(paintInfo.phase);
 
-    return rangeIntersectsRect(renderer, logicalTop, logicalBottom, paintInfo.rect(), offset);
+    return rangeIntersectsRect(renderer, logicalTop, logicalBottom, paintInfo.rect, offset);
 }
 
 void RenderLineBoxList::paint(RenderBoxModelObject* renderer, PaintInfo& paintInfo, const LayoutPoint& paintOffset) const
 {
     // Only paint during the foreground/selection phases.
     if (paintInfo.phase != PaintPhaseForeground && paintInfo.phase != PaintPhaseSelection && paintInfo.phase != PaintPhaseOutline
         && paintInfo.phase != PaintPhaseSelfOutline && paintInfo.phase != PaintPhaseChildOutlines && paintInfo.phase != PaintPhaseTextClip
         && paintInfo.phase != PaintPhaseMask)
         return;
 
     ASSERT(renderer->isRenderBlock() || (renderer->isRenderInline() && renderer->hasLayer())); // The only way an inline could paint like this is if it has a layer.
 
     // If we have no lines then we have no work to do.
     if (!firstLineBox())
         return;
 
     LayoutUnit outlineSize = renderer->maximalOutlineSize(paintInfo.phase);
-    if (!anyLineIntersectsRect(renderer, paintInfo.rect(), paintOffset, outlineSize))
+    if (!anyLineIntersectsRect(renderer, paintInfo.rect, paintOffset, outlineSize))
         return;
 
     PaintInfo info(paintInfo);
     ListHashSet<RenderInline*> outlineObjects;
     info.setOutlineObjects(&outlineObjects);
 
     // See if our root lines intersect with the dirty rect.  If so, then we paint
     // them.  Note that boxes can easily overlap, so we can't make any assumptions
     // based off positions of our first line box or our last line box.
     for (InlineFlowBox* curr = firstLineBox(); curr; curr = curr->nextLineBox()) {
@@ skipping 147 matching lines @@
         ASSERT(child->prevLineBox() == prev);
         prev = child;
     }
     ASSERT(prev == m_lastLineBox);
 #endif
 }
 
 #endif
 
 }