roc+%cs.cmu.edu d17ce6afee Bug 368860. Don't perform out-of-bounds access if we have a bogus empty previous-text-frame. r+sr=dbaron
git-svn-id: svn://10.0.0.236/trunk@224124 18797224-902f-48f8-a5cc-f745e15eee43
2007-04-04 02:28:27 +00:00
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