[orca] Fall back on real active descendant when creating zones

[Joanmarie Diggs <joanied src gnome org>]

commit 2f02aa136c00a79f968b11408c0e41289571a159
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Tue Apr 24 19:12:55 2018 -0400

    Fall back on real active descendant when creating zones

 src/orca/flat_review.py |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)
---
diff --git a/src/orca/flat_review.py b/src/orca/flat_review.py
index 595c231..6ce660e 100644
--- a/src/orca/flat_review.py
+++ b/src/orca/flat_review.py
@@ -817,6 +817,11 @@ class Context:
         for o in objs:
             zones = self.getZonesFromAccessible(o, boundingbox)
             if not zones:
+                descendant = self.script.utilities.realActiveDescendant(o)
+                if descendant:
+                    zones = self.getZonesFromAccessible(descendant, boundingbox)
+
+            if not zones:
                 continue
 
             allZones.extend(zones)