GetCombinedArea could be faster/better make it return an nsRect as return value instead of out parameter. r=dbaron sr=bzbarsky git-svn-id: svn://10.0.0.236/trunk@151690 18797224-902f-48f8-a5cc-f745e15eee43
GetCombinedArea could be faster/better make it return an nsRect as return value instead of out parameter. r=dbaron sr=bzbarsky git-svn-id: svn://10.0.0.236/trunk@151690 18797224-902f-48f8-a5cc-f745e15eee43