Condition the libsecret use on chrome desktop builds to 'use_glib'

Right now, libsecret files are added to the desktop linux
chrome builds conditioned by 'use_ozone'.

Although it works, 'use_ozone' is not the most accurate
variable to check for libsecret inclusion. A more accurate
check is 'use_glib', since GLib is the hard dependency
libsecret relies on.

Today use_ozone happens to work because it forcibly disables
use_glib.

BUG=295089

Review-Url: https://codereview.chromium.org/2452063002
Cr-Commit-Position: refs/heads/master@{#427801}
1 file changed