[gnome-shell] overview: avoid round-off errors when sizing and positioning view selector

[Owen Taylor <otaylor src gnome org>]

commit 9c4cee787560027c36e0e1d375c5ceff047c3837
Author: Owen W. Taylor <otaylor fishsoup net>
Date:   Mon Feb 21 09:32:35 2011 -0500

    overview: avoid round-off errors when sizing and positioning view selector
    
    We need the view selector to extend all the way to the right edge of the
    monitor, so size and position the view selector in a way that the sum of
    its X position and its width add up to the primary monitor width.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=642834

 js/ui/overview.js |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/js/ui/overview.js b/js/ui/overview.js
index 843d8f2..fd2266b 100644
--- a/js/ui/overview.js
+++ b/js/ui/overview.js
@@ -437,11 +437,11 @@ Overview.prototype = {
         this._coverPane.set_position(0, contentY);
         this._coverPane.set_size(primary.width, contentHeight);
 
-        let viewWidth = (1.0 - DASH_SPLIT_FRACTION) * primary.width - this._spacing;
+        let dashWidth = Math.round(DASH_SPLIT_FRACTION * primary.width);
+        let viewWidth = primary.width - dashWidth - this._spacing;
         let viewHeight = contentHeight - 2 * this._spacing;
         let viewY = contentY + this._spacing;
-        let viewX = rtl ? 0
-                        : Math.floor(DASH_SPLIT_FRACTION * primary.width) + this._spacing;
+        let viewX = rtl ? 0 : dashWidth + this._spacing;
 
         // Set the dash's x position - y is handled by a constraint
         let dashX;