[orca] Fix regression from previous commit

[Joanmarie Diggs <joanied src gnome org>]

commit 4c4d60fcd4ed22534fb9ff60626afa957a33b213
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Fri Apr 17 20:05:56 2020 -0400

    Fix regression from previous commit

 src/orca/scripts/apps/SeaMonkey/script.py   | 4 ++--
 src/orca/scripts/apps/Thunderbird/script.py | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/src/orca/scripts/apps/SeaMonkey/script.py b/src/orca/scripts/apps/SeaMonkey/script.py
index 3b5f34954..11eb85401 100644
--- a/src/orca/scripts/apps/SeaMonkey/script.py
+++ b/src/orca/scripts/apps/SeaMonkey/script.py
@@ -104,7 +104,7 @@ class Script(Gecko.Script):
 
         super().onFocus(event)
 
-    def useFocusMode(self, obj):
+    def useFocusMode(self, obj, prevObj=None):
         if self.utilities.isEditableMessage(obj):
             msg = "SEAMONKEY: Using focus mode for editable message %s" % obj
             debug.println(debug.LEVEL_INFO, msg, True)
@@ -112,7 +112,7 @@ class Script(Gecko.Script):
 
         msg = "SEAMONKEY: %s is not an editable message." % obj
         debug.println(debug.LEVEL_INFO, msg, True)
-        return super().useFocusMode(obj)
+        return super().useFocusMode(obj, prevObj)
 
     def enableStickyBrowseMode(self, inputEvent, forceMessage=False):
         if self.utilities.isEditableMessage(orca_state.locusOfFocus):
diff --git a/src/orca/scripts/apps/Thunderbird/script.py b/src/orca/scripts/apps/Thunderbird/script.py
index 8ebdeb974..9765de1a4 100644
--- a/src/orca/scripts/apps/Thunderbird/script.py
+++ b/src/orca/scripts/apps/Thunderbird/script.py
@@ -130,7 +130,7 @@ class Script(Gecko.Script):
 
         super().locusOfFocusChanged(event, oldFocus, newFocus)
 
-    def useFocusMode(self, obj):
+    def useFocusMode(self, obj, prevObj=None):
         if self.utilities.isEditableMessage(obj):
             msg = "THUNDERBIRD: Using focus mode for editable message %s" % obj
             debug.println(debug.LEVEL_INFO, msg, True)
@@ -138,7 +138,7 @@ class Script(Gecko.Script):
 
         msg = "THUNDERBIRD: %s is not an editable message." % obj
         debug.println(debug.LEVEL_INFO, msg, True)
-        return super().useFocusMode(obj)
+        return super().useFocusMode(obj, prevObj)
 
     def enableStickyBrowseMode(self, inputEvent, forceMessage=False):
         if self.utilities.isEditableMessage(orca_state.locusOfFocus):