As TokenEnumerator cleans up global handles posessed, it's owner --
CpuProfiler must be shut down prior to global handles.

Review URL: http://codereview.chromium.org/2072013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4702 ce2b1a6d-e550-0410-aec6-3dcde31c8c00