Check "is_ssl()" and change $uri

[tordans]

Our Server force SSL but WordPress does not understand it. So the
default URLs are not right. This change fixes this issue.

[dboune]

Noting that the modification in this PR is in vendored code managed elsewhere. I had a similar need to output https urls when using FORCE_ADMIN_SSL and so I made a similar change in the WPLessPlugin::processStylesheet function.

--- wp-content/plugins/wp-less.orig/lib/Plugin.class.php    Sun Jul 27 16:22:12 2014
+++ wp-content/plugins/wp-less/lib/Plugin.class.php Sun Jul 27 23:21:00 2014
@@ -196,7 +196,13 @@
             $this->compiler->cacheStylesheet($stylesheet, $force);
         }

-        $wp_styles->registered[$handle]->src = $stylesheet->getTargetUri();
+        $stylesheet_uri = $stylesheet->getTargetUri();
+
+        if (is_ssl()) {
+            $stylesheet_uri = preg_replace("/^http:/i", "https:", $stylesheet_uri);
+        }
+
+        $wp_styles->registered[$handle]->src = $stylesheet_uri;

         return $stylesheet;
     }