[gtk+] Adwaita: no rounded corner for tiled backdrop windows

[Lapo Calamandrei <lapo src gnome org>]

commit 0b1aeceb6e7fe4cb0646c633427eb3f72f2c9bbf
Author: Lapo Calamandrei <calamandrei gmail com>
Date:   Mon Feb 15 13:30:37 2016 +0100

    Adwaita: no rounded corner for tiled backdrop windows
    
    fixes https://bugzilla.gnome.org/show_bug.cgi?id=762067

 gtk/theme/Adwaita/_common.scss           |    2 +-
 gtk/theme/Adwaita/gtk-contained-dark.css |    4 +++-
 gtk/theme/Adwaita/gtk-contained.css      |    4 +++-
 3 files changed, 7 insertions(+), 3 deletions(-)
---
diff --git a/gtk/theme/Adwaita/_common.scss b/gtk/theme/Adwaita/_common.scss
index 0bab3ca..0a333f6 100644
--- a/gtk/theme/Adwaita/_common.scss
+++ b/gtk/theme/Adwaita/_common.scss
@@ -1361,7 +1361,7 @@ headerbar {
   }
 
   .tiled &,
-   .maximized & { border-radius: 0; } // squared corners when the window is max'd or tile
+  .maximized & { &:backdrop, & { border-radius: 0; }} // squared corners when the window is maximized or 
tiled
 
   &.default-decoration {
     padding: 0 4px;
diff --git a/gtk/theme/Adwaita/gtk-contained-dark.css b/gtk/theme/Adwaita/gtk-contained-dark.css
index b40fcf8..29d65c2 100644
--- a/gtk/theme/Adwaita/gtk-contained-dark.css
+++ b/gtk/theme/Adwaita/gtk-contained-dark.css
@@ -1827,8 +1827,10 @@ headerbar {
         -gtk-icon-source: -gtk-icontheme("pan-down-symbolic");
         color: rgba(255, 255, 255, 0.5);
         -gtk-icon-shadow: none; }
-  .tiled .titlebar:not(headerbar), .maximized .titlebar:not(headerbar), .tiled
+  .tiled .titlebar:backdrop:not(headerbar), .tiled .titlebar:not(headerbar), .maximized 
.titlebar:backdrop:not(headerbar), .maximized .titlebar:not(headerbar), .tiled
+  headerbar:backdrop, .tiled
   headerbar, .maximized
+  headerbar:backdrop, .maximized
   headerbar {
     border-radius: 0; }
   .default-decoration.titlebar:not(headerbar),
diff --git a/gtk/theme/Adwaita/gtk-contained.css b/gtk/theme/Adwaita/gtk-contained.css
index 4e9a725..204de34 100644
--- a/gtk/theme/Adwaita/gtk-contained.css
+++ b/gtk/theme/Adwaita/gtk-contained.css
@@ -1831,8 +1831,10 @@ headerbar {
         -gtk-icon-source: -gtk-icontheme("pan-down-symbolic");
         color: rgba(255, 255, 255, 0.5);
         -gtk-icon-shadow: none; }
-  .tiled .titlebar:not(headerbar), .maximized .titlebar:not(headerbar), .tiled
+  .tiled .titlebar:backdrop:not(headerbar), .tiled .titlebar:not(headerbar), .maximized 
.titlebar:backdrop:not(headerbar), .maximized .titlebar:not(headerbar), .tiled
+  headerbar:backdrop, .tiled
   headerbar, .maximized
+  headerbar:backdrop, .maximized
   headerbar {
     border-radius: 0; }
   .default-decoration.titlebar:not(headerbar),