Make supported-xml-content-types.html tests faster.

LayoutTests/http/tests/xmlhttprequest/supported-xml-content-types-expected.txt

Index: LayoutTests/http/tests/xmlhttprequest/supported-xml-content-types-expected.txt
diff --git a/LayoutTests/http/tests/xmlhttprequest/supported-xml-content-types-expected.txt b/LayoutTests/http/tests/xmlhttprequest/supported-xml-content-types-expected.txt
index 2308e39813e62146bb2bfc5c3cfff18449d4383c..3bdff9dbd2ddafe348e7b4084afdb4bcea6bb138 100644
--- a/LayoutTests/http/tests/xmlhttprequest/supported-xml-content-types-expected.txt
+++ b/LayoutTests/http/tests/xmlhttprequest/supported-xml-content-types-expected.txt
@@ -1,79 +1,17 @@
-PASS -- testing: text/xml -- responseXML: [object XMLDocument]
+Test identification of XML content type in XHR responses.
 
-PASS -- testing: image/svg+xml -- responseXML: [object XMLDocument]
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
 
-PASS -- testing: application/soap+xml -- responseXML: [object XMLDocument]
 
-PASS -- testing: foo/bar+xml -- responseXML: [object XMLDocument]
+PASS text/xml
+PASS image/svg+xml
+PASS application/soap+xml
+PASS foo/bar+xml
+PASS 123/BAR+xml
+PASS text/html
+PASS image/png
+PASS invalid
+PASS successfullyParsed is true
 
-PASS -- testing: 123/BAR+xml -- responseXML: [object XMLDocument]
+TEST COMPLETE
 
-PASS -- testing: foo_bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: foo-bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: foo+bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: foo~bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: foo!bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: foo$bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: foo^bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: foo{bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: foo}bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: foo|bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: foo%bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: foo'bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: foo`bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: foo#bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: foo&bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: foo*bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: text/html -- responseXML: null
-
-PASS -- testing: image/png -- responseXML: null
-
-PASS -- testing: invalid -- responseXML: null
-
-FAIL (got document -- response type: foo bar/baz+xml) -- testing: foo bar/baz+xml -- responseXML: [object XMLDocument]
-
-PASS -- testing: foo[bar/baz+xml -- responseXML: null
-
-PASS -- testing: foo]bar/baz+xml -- responseXML: null
-
-PASS -- testing: foo(bar/baz+xml -- responseXML: null
-
-PASS -- testing: foo)bar/baz+xml -- responseXML: null
-
-PASS -- testing: foo
-
-PASS -- testing: foo>bar/baz+xml -- responseXML: null
-
-PASS -- testing: foo@bar/baz+xml -- responseXML: null
-
-PASS -- testing: foo,bar/baz+xml -- responseXML: null
-
-PASS -- testing: foo;bar/baz+xml -- responseXML: null
-
-PASS -- testing: foo:bar/baz+xml -- responseXML: null
-
-PASS -- testing: foo\bar/baz+xml -- responseXML: null
-
-PASS -- testing: foo"bar/baz+xml -- responseXML: null
-
-PASS -- testing: foo/bar/baz+xml -- responseXML: null
-
-PASS -- testing: foo?bar/baz+xml -- responseXML: null
-
-PASS -- testing: foo=bar/baz+xml -- responseXML: null