[cros] Fix crashes happening when changing language on login screen (on Debug builds).
[cros] Fix crashes happening when changing language on login screen (on Debug builds).

BUG=N/A
TEST=Manual. No crash should happen in Debug build.

Review URL: http://codereview.chromium.org/3546002

git-svn-id: http://src.chromium.org/svn/trunk/src@61046 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: a141cd99089592682f5f5dbdc2b2fa82c70f7cee
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser