Coverity: Initialize delegate_.
Coverity: Initialize delegate_.

BUG=None
TEST=None

Review URL: http://codereview.chromium.org/150029

git-svn-id: http://src.chromium.org/svn/trunk/src@19504 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: ae7cfab48a41183ca8773743dc10612927d2fb1e
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