Don't copy the security origin when creating a document

third_party/WebKit/LayoutTests/http/tests/security/create-document-change-domain.html

Index: third_party/WebKit/LayoutTests/http/tests/security/create-document-change-domain.html
diff --git a/third_party/WebKit/LayoutTests/http/tests/security/create-document-change-domain.html b/third_party/WebKit/LayoutTests/http/tests/security/create-document-change-domain.html
index 4eada7a786db8c09079c227f4a75a4c1ad2b0d10..ae40c85eeacc895461840e3c90a0ba6e913aa7e9 100644
--- a/third_party/WebKit/LayoutTests/http/tests/security/create-document-change-domain.html
+++ b/third_party/WebKit/LayoutTests/http/tests/security/create-document-change-domain.html
@@ -15,10 +15,10 @@
 
                 document.domain = 'example.test';
                 assert_equals(document.domain, 'example.test');
-                assert_equals(doc.domain, 'subdomain.example.test');
+                assert_equals(doc.domain, 'example.test');
 
                 document.domain = 'subdomain.example.test';
-            }, "Documents created using createDocument do not share the underlying domain.");
+            }, "Documents created using createDocument share the underlying domain.");
         }
     </script>
 </head>