AppCache error details tests

LayoutTests/http/tests/appcache/404-manifest-expected.txt

Index: LayoutTests/http/tests/appcache/404-manifest-expected.txt
diff --git a/LayoutTests/http/tests/appcache/404-manifest-expected.txt b/LayoutTests/http/tests/appcache/404-manifest-expected.txt
index b04707711b74f84404a66d54afb36d4059ee7c98..4c08cfa08936464bf0ce96b3e4ed8b05233aaf0f 100644
--- a/LayoutTests/http/tests/appcache/404-manifest-expected.txt
+++ b/LayoutTests/http/tests/appcache/404-manifest-expected.txt
@@ -1,4 +1,19 @@
-Test that subresources can be loaded if manifest is not available. Should say SUCCESS.
+Test that subresources can be loaded if manifest is not available.
 
-SUCCESS
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+PASS gotCheckingEvent is true
+PASS window.applicationCache.status is applicationCache.UNCACHED
+PASS 'reason' in event is true
+PASS 'url' in event is true
+PASS 'status' in event is true
+PASS 'message' in event is true
+PASS event.reason is "manifest"
+PASS event.url is "http://127.0.0.1:8000/appcache/does-not-exist.manifest"
+PASS event.status is 404
+PASS req.responseText is "Hello, World!"
+PASS successfullyParsed is true
+
+TEST COMPLETE