[orca] Handle (another) GError which prevents Orca from speaking menu items in Skype

[Joanmarie Diggs <joanied src gnome org>]

commit 4c39fbcfd0a6c9cb56709887c3f0346eee874b89
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Mon Mar 12 06:54:04 2012 -0400

    Handle (another) GError which prevents Orca from speaking menu items in Skype

 src/orca/script_utilities.py |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/src/orca/script_utilities.py b/src/orca/script_utilities.py
index 7a97658..3adcf14 100644
--- a/src/orca/script_utilities.py
+++ b/src/orca/script_utilities.py
@@ -546,7 +546,11 @@ class Utilities:
         except:
             displayedText = None
 
-        role = obj.getRole()
+        try:
+            role = obj.getRole()
+        except (LookupError, RuntimeError):
+            role = None
+
         if role == pyatspi.ROLE_COMBO_BOX:
             displayedText = self._displayedTextInComboBox(obj)
             if not self._script.generatorCache.has_key(self.DISPLAYED_TEXT):