[gnome-shell] unlockDialog: Use unique unlock-dialog style class

[Florian Müllner <fmuellner src gnome org>]

commit 9963f7ce845362c59dac953a71fbac98f447c13d
Author: Joonas Henriksson <joonas henriksson gmail com>
Date:   Wed Aug 26 03:06:46 2020 +0300

    unlockDialog: Use unique unlock-dialog style class
    
    Allows styling the unlock dialog elements individually from the GDM
    login dialog.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1421

 data/theme/gnome-shell-sass/widgets/_login-dialog.scss | 3 ++-
 js/ui/unlockDialog.js                                  | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/data/theme/gnome-shell-sass/widgets/_login-dialog.scss 
b/data/theme/gnome-shell-sass/widgets/_login-dialog.scss
index 06fdcf25a7..6c40072c4e 100644
--- a/data/theme/gnome-shell-sass/widgets/_login-dialog.scss
+++ b/data/theme/gnome-shell-sass/widgets/_login-dialog.scss
@@ -5,7 +5,8 @@
   max-width: 23em;
 }
 
-.login-dialog {
+.login-dialog,
+.unlock-dialog {
   //reset
   border: none;
   background-color: transparent;
diff --git a/js/ui/unlockDialog.js b/js/ui/unlockDialog.js
index 4f461f3980..974600ae54 100644
--- a/js/ui/unlockDialog.js
+++ b/js/ui/unlockDialog.js
@@ -475,7 +475,7 @@ var UnlockDialog = GObject.registerClass({
     _init(parentActor) {
         super._init({
             accessible_role: Atk.Role.WINDOW,
-            style_class: 'login-dialog',
+            style_class: 'unlock-dialog',
             visible: false,
             reactive: true,
         });