[orca] Return early when generating new ancestors for frames and windows

[Joanmarie Diggs <joanied src gnome org>]

commit b29672f36e222a3e0b3b508b7808f05af9e4e9e6
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Tue Apr 24 10:39:37 2018 -0400

    Return early when generating new ancestors for frames and windows

 src/orca/speech_generator.py |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)
---
diff --git a/src/orca/speech_generator.py b/src/orca/speech_generator.py
index c7583f9..69b08ce 100644
--- a/src/orca/speech_generator.py
+++ b/src/orca/speech_generator.py
@@ -1831,8 +1831,12 @@ class SpeechGenerator(generator.Generator):
         if priorObj == obj:
             return []
 
+        role = args.get('role', obj.getRole())
+        if role in [pyatspi.ROLE_FRAME, pyatspi.ROLE_WINDOW]:
+            return []
+
         result = []
-        if obj.getRole() == pyatspi.ROLE_MENU_ITEM \
+        if role == pyatspi.ROLE_MENU_ITEM \
            and (not priorObj or priorObj.getRole() == pyatspi.ROLE_WINDOW):
             return result