Merge 92132

Source/WebCore/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 1820 matching lines @@
 void TrailingObjects::updateMidpointsForTrailingBoxes(LineMidpointState& lineMidpointState, const InlineIterator& lBreak, CollapseFirstSpaceOrNot collapseFirstSpace)
 {
     if (!m_whitespace)
         return;
 
     // This object is either going to be part of the last midpoint, or it is going to be the actual endpoint.
     // In both cases we just decrease our pos by 1 level to exclude the space, allowing it to - in effect - collapse into the newline.
     if (lineMidpointState.numMidpoints % 2) {
         // Find the trailing space object's midpoint.
         int trailingSpaceMidpoint = lineMidpointState.numMidpoints - 1;
-        for ( ; trailingSpaceMidpoint >= 0 && lineMidpointState.midpoints[trailingSpaceMidpoint].m_obj != m_whitespace; --trailingSpaceMidpoint) { }
+        for ( ; trailingSpaceMidpoint > 0 && lineMidpointState.midpoints[trailingSpaceMidpoint].m_obj != m_whitespace; --trailingSpaceMidpoint) { }
         ASSERT(trailingSpaceMidpoint >= 0);
         if (collapseFirstSpace == CollapseFirstSpace)
             lineMidpointState.midpoints[trailingSpaceMidpoint].m_pos--;
 
         // Now make sure every single trailingPositionedBox following the trailingSpaceMidpoint properly stops and starts
         // ignoring spaces.
         size_t currentMidpoint = trailingSpaceMidpoint + 1;
         for (size_t i = 0; i < m_boxes.size(); ++i) {
             if (currentMidpoint >= lineMidpointState.numMidpoints) {
                 // We don't have a midpoint for this box yet.
@@ skipping 677 matching lines @@
         }
     }
 
     setLogicalHeight(logicalHeight() + paginationStrut);
     width.updateAvailableWidth();
 
     return true;
 }
 
 }