r=pavlov. (Wanted: explicit extension-dependency system.) git-svn-id: svn://10.0.0.236/trunk@174197 18797224-902f-48f8-a5cc-f745e15eee43
r=pavlov. (Wanted: explicit extension-dependency system.) git-svn-id: svn://10.0.0.236/trunk@174197 18797224-902f-48f8-a5cc-f745e15eee43