fixes issue 464 + adds interoperability with chrome hooks: assumes chrome   hook is ok w/ clobbered native instrs being executed
fixes issue 464
+ adds interoperability with chrome hooks: assumes chrome
  hook is ok w/ clobbered native instrs being executed

SVN-Revision: 797

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