Fix DCHECK caused by passing a parameter to a string that doesn't have a placeholder.
Fix DCHECK caused by passing a parameter to a string that doesn't have a placeholder.

BUG=None
TEST=sky doesn't complain about DCHECKs.

Review URL: http://codereview.chromium.org/3795009

git-svn-id: http://src.chromium.org/svn/trunk/src@62826 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 149313063318128fbbc47560c1871a0ad3e8e379
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