Record only v1 app launch in OpenEnabledApplication.

This is a follow-up CL of r226940.

BUG=268661

Review URL: https://codereview.chromium.org/25686010

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226972 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 226972