Fix some leaks in the syncchannel unittest.
Fix some leaks in the syncchannel unittest.

TBR=darin

Review URL: http://codereview.chromium.org/8170

git-svn-id: http://src.chromium.org/svn/trunk/src@3963 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 8ad37d6f9aad67dc7d944ce5782c6d8513002cdd
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