[orca] Eliminate double-presentation of labels in say all

[Joanmarie Diggs <joanied src gnome org>]

commit 3cb78e3dc7e84211d18d0acf584c7aef34b62b21
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Tue May 21 18:32:52 2019 +0200

    Eliminate double-presentation of labels in say all

 src/orca/scripts/web/script.py | 3 +++
 1 file changed, 3 insertions(+)
---
diff --git a/src/orca/scripts/web/script.py b/src/orca/scripts/web/script.py
index 50f1c7146..64bbf183e 100644
--- a/src/orca/scripts/web/script.py
+++ b/src/orca/scripts/web/script.py
@@ -596,6 +596,9 @@ class Script(default.Script):
                     continue
 
                 obj, startOffset, endOffset, text = content
+                if self.utilities.isLabellingContents(obj):
+                    continue
+
                 eventsynthesizer.scrollIntoView(obj)
                 utterances = self.speechGenerator.generateContents(
                     [content], eliminatePauses=True, priorObj=priorObj)