Fix memory leak in unit_tests
Fix memory leak in unit_tests

BUG=13733
Original review: http://codereview.chromium.org/119444
Patch by Meelap Shah

git-svn-id: http://src.chromium.org/svn/trunk/src@18106 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 6394b2031677980f6b6df1379e9b962ef57bdae0
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