Rendering text-justify:distribute for 8 bit characters.

Source/core/rendering/RenderBlockLineLayout.cpp

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All right reserved.
  * Copyright (C) 2010 Google 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.
  *
@@ skipping 694 matching lines @@
             continue; // Positioned objects are only participating to figure out their
                       // correct static x position.  They have no effect on the width.
                       // Similarly, line break boxes have no effect on the width.
         if (r->m_object->isText()) {
             RenderText* rt = toRenderText(r->m_object);
             if (textAlign == JUSTIFY && r != trailingSpaceRun && textJustify != TextJustifyNone) {
                 if (!isAfterExpansion)
                     toInlineTextBox(r->m_box)->setCanHaveLeadingExpansion(true);
                 unsigned opportunitiesInRun;
                 if (rt->is8Bit())
-                    opportunitiesInRun = Font::expansionOpportunityCount(rt->characters8() + r->m_start, r->m_stop - r->m_start, r->m_box->direction(), isAfterExpansion);
+                    opportunitiesInRun = Font::expansionOpportunityCount(rt->characters8() + r->m_start, r->m_stop - r->m_start, r->m_box->direction(), isAfterExpansion, (textJustify == TextJustifyDistribute));
                 else
-                    opportunitiesInRun = Font::expansionOpportunityCount(rt->characters16() + r->m_start, r->m_stop - r->m_start, r->m_box->direction(), isAfterExpansion);
+                    opportunitiesInRun = Font::expansionOpportunityCount(rt->characters16() + r->m_start, r->m_stop - r->m_start, r->m_box->direction(), isAfterExpansion, (textJustify == TextJustifyDistribute));
                 expansionOpportunities.append(opportunitiesInRun);
                 expansionOpportunityCount += opportunitiesInRun;
             }
 
             if (int length = rt->textLength()) {
                 if (!r->m_start && needsWordSpacing && isSpaceOrNewline(rt->characterAt(r->m_start)))
                     totalLogicalWidth += rt->style(lineInfo.isFirstLine())->font().wordSpacing();
                 needsWordSpacing = !isSpaceOrNewline(rt->characterAt(r->m_stop - 1)) && r->m_stop == length;
             }
 
@@ skipping 1687 matching lines @@
     lineGridBox->alignBoxesInBlockDirection(logicalHeight(), textBoxDataMap, verticalPositionCache);
 
     setLineGridBox(lineGridBox);
 
     // FIXME: If any of the characteristics of the box change compared to the old one, then we need to do a deep dirtying
     // (similar to what happens when the page height changes). Ideally, though, we only do this if someone is actually snapping
     // to this grid.
 }
 
 }