[orca] Work around a missing object:state-changed:focused event from Gecko

[Joanmarie Diggs <joanied src gnome org>]

commit ecfd2738f9e9298c1301260ec38d99ea7fec9bd8
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Wed Sep 9 09:31:06 2015 -0400

    Work around a missing object:state-changed:focused event from Gecko

 src/orca/scripts/toolkits/Gecko/script.py |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/orca/scripts/toolkits/Gecko/script.py b/src/orca/scripts/toolkits/Gecko/script.py
index abc7a67..16e947d 100644
--- a/src/orca/scripts/toolkits/Gecko/script.py
+++ b/src/orca/scripts/toolkits/Gecko/script.py
@@ -179,6 +179,9 @@ class Script(web.Script):
         if role in [pyatspi.ROLE_TEXT, pyatspi.ROLE_PASSWORD_TEXT]:
             orca.setLocusOfFocus(event, event.source)
 
+        if role == pyatspi.ROLE_COMBO_BOX:
+            orca.setLocusOfFocus(event, event.source)
+
     def onFocusedChanged(self, event):
         """Callback for object:state-changed:focused accessibility events."""