[gnome-shell-extensions] nativeWindowPlacement: Adjust to overview changes

[Florian Müllner <fmuellner src gnome org>]

commit 530b165ddf403269c1eabeaf9940e67f8334e763
Author: Florian Müllner <fmuellner gnome org>
Date:   Wed Sep 20 00:59:25 2017 +0200

    nativeWindowPlacement: Adjust to overview changes
    
    title._spacing is no longer defined, so we end up with bogus positions
    when window-captions-on-top is set to true. Adjust the positioning to
    do without that for now, though the whole extension could use a rewrite
    to not copy everything-and-the-kitching-sink, or be killed off as yet
    another extension from the original random collection that turned out
    too expensive to keep dragging along ...
    
    https://bugzilla.gnome.org/show_bug.cgi?id=787604

 extensions/native-window-placement/extension.js |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/extensions/native-window-placement/extension.js b/extensions/native-window-placement/extension.js
index da911ba..998267e 100644
--- a/extensions/native-window-placement/extension.js
+++ b/extensions/native-window-placement/extension.js
@@ -431,8 +431,8 @@ function enable() {
             let titleX = cloneX + (cloneWidth - titleWidth) / 2;
 
             /// this is the actual difference to original gnome-shell:
-            //let titleY = cloneY + cloneHeight + title._spacing;
-            let titleY = cloneY - title.height + title._spacing;
+            //let titleY = cloneY + cloneHeight - (title.height - this.borderSize) / 2;
+            let titleY = cloneY - (title.height - this.borderSize) / 2;
 
             if (animate)
                 this._animateOverlayActor(title, Math.floor(titleX), Math.floor(titleY), titleWidth);