[gnome-shell] messageTray: Clean up variable names

[Jasper St. Pierre <jstpierre src gnome org>]

commit 176a73f4e919afbd2fee544ff8812ae996d10208
Author: Jasper St. Pierre <jstpierre mecheye net>
Date:   Wed Jan 2 07:56:07 2013 -0500

    messageTray: Clean up variable names
    
    Variable names like "sourceNotificationStackDoneShowing" are too
    long, and too undescriptive: this one points to a source, not a
    notification stack that has been done showing.

 js/ui/messageTray.js |   13 +++++--------
 1 files changed, 5 insertions(+), 8 deletions(-)
---
diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index 64fcecf..635ee26 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -2768,17 +2768,14 @@ const MessageTray = new Lang.Class({
         this._summaryBoxPointerState = State.HIDDEN;
         this._summaryBoxPointer.bin.child = null;
 
-        let sourceNotificationStackDoneShowing = null;
         if (doneShowingNotificationStack) {
-            this._summaryBoxPointerItem.doneShowingNotificationStack();
-            sourceNotificationStackDoneShowing = this._summaryBoxPointerItem.source;
-        }
+            let source = this._summaryBoxPointerItem.source;
 
-        this._summaryBoxPointerItem = null;
+            this._summaryBoxPointerItem.doneShowingNotificationStack();
+            this._summaryBoxPointerItem = null;
 
-        if (sourceNotificationStackDoneShowing) {
-            if (sourceNotificationStackDoneShowing.isTransient && !this._reNotifyAfterHideNotification)
-                sourceNotificationStackDoneShowing.destroy(NotificationDestroyedReason.EXPIRED);
+            if (source.isTransient && !this._reNotifyAfterHideNotification)
+                source.destroy(NotificationDestroyedReason.EXPIRED);
             if (this._reNotifyAfterHideNotification) {
                 this._onNotify(this._reNotifyAfterHideNotification.source, 
this._reNotifyAfterHideNotification);
                 this._reNotifyAfterHideNotification = null;