Ensure that get_bloginfo( 'pingback_url' ) uses site_url(), for SSL awareness.

props technosailor.
fixes #25418.


git-svn-id: https://develop.svn.wordpress.org/trunk@25671 602fd350-edb4-49c9-b593-d223f7449a82
Use site_url() in theme-compat.

props technosailor.
see #25418.


git-svn-id: https://develop.svn.wordpress.org/trunk@25672 602fd350-edb4-49c9-b593-d223f7449a82