check if the joined 2 pieces is breakable in between before moving to 2nd piece. r=kin, sr=rbs, a=adt, chofman git-svn-id: svn://10.0.0.236/branches/MOZILLA_1_0_BRANCH@126526 18797224-902f-48f8-a5cc-f745e15eee43
check if the joined 2 pieces is breakable in between before moving to 2nd piece. r=kin, sr=rbs, a=adt, chofman git-svn-id: svn://10.0.0.236/branches/MOZILLA_1_0_BRANCH@126526 18797224-902f-48f8-a5cc-f745e15eee43