Version 3.27.34.15 (merged r23129)

Fix access checks in GetAccessor

R=danno@chromium.org
BUG=

Review URL: https://codereview.chromium.org/500203002

git-svn-id: https://v8.googlecode.com/svn/branches/3.27@23375 ce2b1a6d-e550-0410-aec6-3dcde31c8c00