Ignore invalid urls on command line.
Ignore invalid urls on command line.

BUG=none
TEST=chrome doesn't dcheck if you launch with a command line such as "chrome %U"

Review URL: http://codereview.chromium.org/293010

git-svn-id: http://src.chromium.org/svn/trunk/src@29529 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 3b170bf52eaa43ee613da5199f9f94f8eddce264
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