Fix a leak caught by valgrind following r31199
Fix a leak caught by valgrind following r31199

TBR=jam

Review URL: http://codereview.chromium.org/375007

git-svn-id: http://src.chromium.org/svn/trunk/src@31206 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: f56958136846b0eb171b528e412ee3eca91c379a
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