Un-deprecate Element.setAttributeNodeNS()

LayoutTests/http/tests/security/xss-DENIED-iframe-src-alias-expected.txt

Index: LayoutTests/http/tests/security/xss-DENIED-iframe-src-alias-expected.txt
diff --git a/LayoutTests/http/tests/security/xss-DENIED-iframe-src-alias-expected.txt b/LayoutTests/http/tests/security/xss-DENIED-iframe-src-alias-expected.txt
index ff54e83e9aa3bc6213ec85b0d59018e0d50f673b..910102bc5c19bdbad9cb06d6af9544e3bd9c9377 100644
--- a/LayoutTests/http/tests/security/xss-DENIED-iframe-src-alias-expected.txt
+++ b/LayoutTests/http/tests/security/xss-DENIED-iframe-src-alias-expected.txt
@@ -4,7 +4,6 @@ CONSOLE ERROR: Blocked a frame with origin "http://127.0.0.1:8000" from accessin
 CONSOLE ERROR: Blocked a frame with origin "http://127.0.0.1:8000" from accessing a frame with origin "http://localhost:8080". Protocols, domains, and ports must match.
 CONSOLE ERROR: Blocked a frame with origin "http://127.0.0.1:8000" from accessing a frame with origin "http://localhost:8080". Protocols, domains, and ports must match.
 CONSOLE ERROR: Blocked a frame with origin "http://127.0.0.1:8000" from accessing a frame with origin "http://localhost:8080". Protocols, domains, and ports must match.
-CONSOLE WARNING: 'Element.setAttributeNodeNS' is deprecated and has been removed from DOM4 (http://w3.org/tr/dom).
 CONSOLE ERROR: Blocked a frame with origin "http://127.0.0.1:8000" from accessing a frame with origin "http://localhost:8080". Protocols, domains, and ports must match.
 CONSOLE ERROR: Blocked a frame with origin "http://127.0.0.1:8000" from accessing a frame with origin "http://localhost:8080". Protocols, domains, and ports must match.
 CONSOLE ERROR: Blocked a frame with origin "http://127.0.0.1:8000" from accessing a frame with origin "http://localhost:8080". Protocols, domains, and ports must match.