[gnome-documents/gnome-3-22] documents: Use a global named constant for the ownCloud prefix

[Debarshi Ray <debarshir src gnome org>]

commit 86f9f3bf347e27e16789e63c585d0aba31fbdb4c
Author: Debarshi Ray <debarshir gnome org>
Date:   Wed Apr 5 18:15:25 2017 +0200

    documents: Use a global named constant for the ownCloud prefix
    
    https://bugzilla.gnome.org/show_bug.cgi?id=781032

 src/documents.js |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/src/documents.js b/src/documents.js
index 7bdea98..1c9fd6b 100644
--- a/src/documents.js
+++ b/src/documents.js
@@ -1101,6 +1101,8 @@ const GoogleDocument = new Lang.Class({
     }
 });
 
+const OWNCLOUD_PREFIX = 'owncloud:';
+
 const OwncloudDocument = new Lang.Class({
     Name: 'OwncloudDocument',
     Extends: DocCommon,
@@ -1409,7 +1411,7 @@ const DocumentManager = new Lang.Class({
 
     _identifierIsOwncloud: function(identifier) {
         return (identifier &&
-                (identifier.indexOf('owncloud:') != -1));
+                (identifier.indexOf(OWNCLOUD_PREFIX) != -1));
     },
 
     _identifierIsSkydrive: function(identifier) {