[orca] Treat documents whose parents are zombie iframes as detached documents

[Joanmarie Diggs <joanied src gnome org>]

commit e789b221122203dd47a348c06b562ee28aa76628
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Wed Feb 1 20:22:01 2017 +0100

    Treat documents whose parents are zombie iframes as detached documents

 src/orca/scripts/web/script_utilities.py |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/orca/scripts/web/script_utilities.py b/src/orca/scripts/web/script_utilities.py
index 19fb07b..c381c60 100644
--- a/src/orca/scripts/web/script_utilities.py
+++ b/src/orca/scripts/web/script_utilities.py
@@ -2126,7 +2126,7 @@ class Utilities(script_utilities.Utilities):
     def isDetachedDocument(self, obj):
         docRoles = [pyatspi.ROLE_DOCUMENT_FRAME, pyatspi.ROLE_DOCUMENT_WEB]
         if (obj and obj.getRole() in docRoles):
-            if obj.parent is None:
+            if obj.parent is None or self.isZombie(obj.parent):
                 msg = "WEB: %s is a detatched document" % obj
                 debug.println(debug.LEVEL_INFO, msg, True)
                 return True