From acfc69ec7e3470f8682e655af289a254a1c01a2d Mon Sep 17 00:00:00 2001
From: JustOff <Off.Just.Off@gmail.com>
Date: Wed, 13 Mar 2019 18:15:07 +0200
Subject: Support string default values for unions containing USVString

---
 dom/bindings/Codegen.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/dom/bindings/Codegen.py b/dom/bindings/Codegen.py
index cb93e4897f..5c4aa746d5 100644
--- a/dom/bindings/Codegen.py
+++ b/dom/bindings/Codegen.py
@@ -4355,7 +4355,9 @@ def handleDefaultStringValue(defaultValue, method):
     passing as the second argument of handleDefault; in particular it does not
     end with a ';'
     """
-    assert defaultValue.type.isDOMString() or defaultValue.type.isByteString()
+    assert (defaultValue.type.isDOMString() or
+            defaultValue.type.isUSVString() or
+            defaultValue.type.isByteString())
     return ("static const %(char_t)s data[] = { %(data)s };\n"
             "%(method)s(data, ArrayLength(data) - 1)") % {
                 'char_t': "char" if defaultValue.type.isByteString() else "char16_t",
-- 
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