[orca] Make documentFrame an optional argument to dumpCache()

[Joanmarie Diggs <joanied src gnome org>]

commit 74b461358a4ed78bd9a2e78ba76478a82f5e631b
Author: Joanmarie Diggs <jdiggs igalia com>
Date:   Tue Dec 15 13:56:47 2020 +0100

    Make documentFrame an optional argument to dumpCache()

 src/orca/scripts/web/script_utilities.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/src/orca/scripts/web/script_utilities.py b/src/orca/scripts/web/script_utilities.py
index 7a275e170..d21d318d8 100644
--- a/src/orca/scripts/web/script_utilities.py
+++ b/src/orca/scripts/web/script_utilities.py
@@ -127,7 +127,7 @@ class Utilities(script_utilities.Utilities):
         for key in toRemove:
             self._caretContexts.pop(key, None)
 
-    def dumpCache(self, documentFrame, preserveContext=True):
+    def dumpCache(self, documentFrame=None, preserveContext=True):
         if not documentFrame or self.isZombie(documentFrame):
             documentFrame = self.documentFrame()