Switch V8WindowCustom to the new-style ExceptionState

LayoutTests/http/tests/security/aboutBlank/xss-DENIED-set-opener-expected.txt

Index: LayoutTests/http/tests/security/aboutBlank/xss-DENIED-set-opener-expected.txt
diff --git a/LayoutTests/http/tests/security/aboutBlank/xss-DENIED-set-opener-expected.txt b/LayoutTests/http/tests/security/aboutBlank/xss-DENIED-set-opener-expected.txt
index 7e2f8712144e59900218d20d6c2b6231a866819c..018e4434e129db204e94308a4c040d77101927b5 100644
--- a/LayoutTests/http/tests/security/aboutBlank/xss-DENIED-set-opener-expected.txt
+++ b/LayoutTests/http/tests/security/aboutBlank/xss-DENIED-set-opener-expected.txt
@@ -5,7 +5,7 @@ Code injected into window:
 setTimeout(function() {write(window.opener.top.frames[0], 'FAIL: XSS was allowed.');}, 100);
 setTimeout(function() {write(window.opener.top.frames[1], 'SUCCESS: Window remained in original SecurityOrigin.');}, 200);
 setTimeout(function() { if (window.testRunner) testRunner.globalFlag = true; }, 300);</script>
-PASS: 'window.open' called on another frame threw: SecurityError: Blocked a frame with origin "http://127.0.0.1:8000" from accessing a cross-origin frame.
+PASS: 'window.open' called on another frame threw: SecurityError: Failed to execute 'open' on 'Window': Blocked a frame with origin "http://127.0.0.1:8000" from accessing a cross-origin frame.
  
 
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