Coverity: initialize timer_.
Coverity: initialize timer_.

CID=3805
TEST=None
BUG=None

Review URL: http://codereview.chromium.org/244050

git-svn-id: http://src.chromium.org/svn/trunk/src@27773 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 692c95fe2cefa76749ef26834d928400c9143251
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