Add failure case for manifest file testing.

chrome/test/data/nacl/manifest_file/irt_manifest_file_test.html

Index: chrome/test/data/nacl/manifest_file/irt_manifest_file_test.html
diff --git a/chrome/test/data/nacl/manifest_file/irt_manifest_file_test.html b/chrome/test/data/nacl/manifest_file/irt_manifest_file_test.html
index be9df7111c0c038a55c43894af7b8492979e586e..0499858a9cea30f0075599b7b6d3bb832f26d343 100644
--- a/chrome/test/data/nacl/manifest_file/irt_manifest_file_test.html
+++ b/chrome/test/data/nacl/manifest_file/irt_manifest_file_test.html
@@ -40,7 +40,8 @@ function setupTests(tester, plugin) {
   tester.addAsyncTest('Test_00_Init', function(status) {
     plugin.addEventListener('message', function(message_event) {
       this.removeEventListener('message', arguments.callee, false);
-      var golden = 'File Contents:\nTest File Content';
+      // When a test succeeds, 'Pass' is returned. We have now three test cases.
+      var golden = ['Pass', 'Pass', 'Pass'];
       status.assertEqual(message_event.data, golden);
       status.pass();
     }, false);