const. Removed an unnecessary PR_CALLBACK qualifier. r=nelson. git-svn-id: svn://10.0.0.236/trunk@259084 18797224-902f-48f8-a5cc-f745e15eee43
const. Removed an unnecessary PR_CALLBACK qualifier. r=nelson. git-svn-id: svn://10.0.0.236/trunk@259084 18797224-902f-48f8-a5cc-f745e15eee43