R=yangguo@chromium.org
BUG=chromium:176056
TEST=webkit:storage/indexeddb/create-and-remove-object-store.html

Review URL: https://codereview.chromium.org/12300009

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@13680 ce2b1a6d-e550-0410-aec6-3dcde31c8c00