[orca] Add object:active-descendant-changed to events that may be part of an "event flood"

[Joanmarie Diggs <joanied src gnome org>]

commit 9b51a3e24991c67bdeb2b0cc9439f0606f2c05e4
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Sun Sep 1 15:50:06 2013 -0400

    Add object:active-descendant-changed to events that may be part of an "event flood"

 src/orca/script.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/orca/script.py b/src/orca/script.py
index 4a7b9f0..9f26306 100644
--- a/src/orca/script.py
+++ b/src/orca/script.py
@@ -440,7 +440,7 @@ class Script:
         focus    = ["focus:", "object:state-changed:focused"]
         typing   = ["object:text-changed:insert", "object:text-changed:delete"]
         arrowing = ["object:text-caret-moved", "object:text-selection-changed",
-                    "object:selection-changed"]
+                    "object:selection-changed", "object:active-descendant-changed"]
 
         skip = False
         if (event.type in arrowing or event.type in typing) \