Leaking locale changes is a Very Bad Idea.

BUG=298893,298900
TEST=tests stop failing
R=cbentzel@chromium.org

Review URL: https://codereview.chromium.org/24809002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225538 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 225538