[metacity] theme: Add tiled_left/tiled_right frame states

[Alberts Muktupāvels <muktupavels src gnome org>]

commit fb28b462798f0c5554b8165ad264610d035a7920
Author: Florian Müllner <fmuellner gnome org>
Date:   Sat Sep 27 18:10:52 2014 +0300

    theme: Add tiled_left/tiled_right frame states
    
    It may be desirable for theme authors to treat side-by-side tiled
    windows differently, for instance to give the edge-touching border
    a width of 0, so add additional frame states for tiled windows.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=637330
    
    NOTE: Patch copied from mutter and adapted for metacity. This adds
    only description in doc/theme-format.txt as all other changes has
    been added already.

 doc/theme-format.txt |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/doc/theme-format.txt b/doc/theme-format.txt
index 129bcd2..ba68fe1 100644
--- a/doc/theme-format.txt
+++ b/doc/theme-format.txt
@@ -28,6 +28,10 @@ New Features in Theme Format Version 3.3
 Add two additional button background functions - left_single_background and
 right_single_background - for button groups with just a single button.
 
+There are now additional frame states to style left/right tiled windows
+differently ("tiled_left", "tiled_right", "tiled_left_and_shaded",
+"tiled_right_and_shaded")
+
 New Features in Theme Format Version 3.2
 ========================================