Register for nudge and syscall filter events.
Register for nudge and syscall filter events.

This fixes a hang in browser_tests and properly generates data for all
chrome sub-processes.

SVN-Revision: 1996

code4bones/dynamorio,daksunt/dynamorio,AmesianX/dynamorio,sigma-random/dynamorio,bl4ckic3/dynamorio,code4bones/dynamorio,AmesianX/dynamorio,bl4ckic3/dynamorio,sigma-random/dynamorio,sigma-random/dynamorio,bl4ckic3/dynamorio,code4bones/dynamorio,AmesianX/dynamorio,sigma-random/dynamorio,daksunt/dynamorio,bl4ckic3/dynamorio,bl4ckic3/dynamorio,AmesianX/dynamorio,daksunt/dynamorio,daksunt/dynamorio,code4bones/dynamorio,AmesianX/dynamorio,sigma-random/dynamorio,code4bones/dynamorio,daksunt/dynamorio