[gnome-shell] windowManager: Clean up starting of size-change animations a bit

[Robert Mader <rmader src gnome org>]

commit d7185d71c6c5b51749cbd4e92b3730c60ee259f9
Author: Jonas Dreßler <verdre v0yd nl>
Date:   Tue May 12 12:22:52 2020 +0200

    windowManager: Clean up starting of size-change animations a bit
    
    We can do without having two calls to shellwm.completed_size_change() in
    there, so use an early return for all cases.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/-/merge_requests/1251

 js/ui/windowManager.js | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/js/ui/windowManager.js b/js/ui/windowManager.js
index 3dacca2eca..e05c02305a 100644
--- a/js/ui/windowManager.js
+++ b/js/ui/windowManager.js
@@ -1278,13 +1278,13 @@ var WindowManager = class {
     }
 
     _sizeChangeWindow(shellwm, actor, whichChange, oldFrameRect, _oldBufferRect) {
-        let types = [Meta.WindowType.NORMAL];
-        if (!this._shouldAnimateActor(actor, types)) {
-            shellwm.completed_size_change(actor);
-            return;
-        }
+        const types = [Meta.WindowType.NORMAL];
+        const shouldAnimate =
+            this._shouldAnimateActor(actor, types) &&
+            oldFrameRect.width > 0 &&
+            oldFrameRect.height > 0;
 
-        if (oldFrameRect.width > 0 && oldFrameRect.height > 0)
+        if (shouldAnimate)
             this._prepareAnimationInfo(shellwm, actor, oldFrameRect, whichChange);
         else
             shellwm.completed_size_change(actor);