[gtk+/gtk-3-16] Adwaita: set -GtkRange-trough-border: 0 for scrollbars

[Lapo Calamandrei <lapo src gnome org>]

commit 40622c6924a472a22c6212bf2bcfd439b0bf30ae
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Tue Sep 8 22:12:12 2015 +0200

    Adwaita: set -GtkRange-trough-border: 0 for scrollbars
    
    which fixes firefox scrollbar not being fittsy when maximixed.

 gtk/theme/Adwaita/_common.scss           |    2 +-
 gtk/theme/Adwaita/gtk-contained-dark.css |    2 +-
 gtk/theme/Adwaita/gtk-contained.css      |    2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index 20e6839..f095658 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -1880,7 +1880,7 @@ column-header.button.dnd { // for treeview-like derive widgets
 
 .scrollbar {
   -GtkRange-slider-width: 13;
-  -GtkRange-trough-border: 1;
+  -GtkRange-trough-border: 0;
   -GtkScrollbar-has-backward-stepper: false;
   -GtkScrollbar-has-forward-stepper: false;
   -GtkScrollbar-min-slider-length: 42; // minimum size for the slider.
diff --git a/gtk/theme/Adwaita/gtk-contained-dark.css b/gtk/theme/Adwaita/gtk-contained-dark.css
index 57604aa..6398d5c 100644
--- a/gtk/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/theme/Adwaita/gtk-contained-dark.css
@@ -2441,7 +2441,7 @@ column-header .titlebar .button.titlebutton,
  **************/
 .scrollbar {
   -GtkRange-slider-width: 13;
-  -GtkRange-trough-border: 1;
+  -GtkRange-trough-border: 0;
   -GtkScrollbar-has-backward-stepper: false;
   -GtkScrollbar-has-forward-stepper: false;
   -GtkScrollbar-min-slider-length: 42;
diff --git a/gtk/theme/Adwaita/gtk-contained.css b/gtk/theme/Adwaita/gtk-contained.css
index ea1fc92..77a480b 100644
--- a/gtk/theme/Adwaita/gtk-contained.css
+++ b/gtk/theme/Adwaita/gtk-contained.css
@@ -2447,7 +2447,7 @@ column-header .titlebar .button.titlebutton,
  **************/
 .scrollbar {
   -GtkRange-slider-width: 13;
-  -GtkRange-trough-border: 1;
+  -GtkRange-trough-border: 0;
   -GtkScrollbar-has-backward-stepper: false;
   -GtkScrollbar-has-forward-stepper: false;
   -GtkScrollbar-min-slider-length: 42;