Make js-test-post a noop.

LayoutTests/fast/js/resources/js-test-pre.js

Index: LayoutTests/fast/js/resources/js-test-pre.js
diff --git a/LayoutTests/fast/js/resources/js-test-pre.js b/LayoutTests/fast/js/resources/js-test-pre.js
index bb127d411d0b97231507c15c4e2246c1913618c9..6e578d5e6372b8e7504823684e1c674f6f11e984 100644
--- a/LayoutTests/fast/js/resources/js-test-pre.js
+++ b/LayoutTests/fast/js/resources/js-test-pre.js
@@ -73,8 +73,23 @@ var description, debug, successfullyParsed, errorMessage;
         (document.head || document.documentElement).appendChild(styleElement);
     }
 
-    if (!isWorker())
+    function handleTestFinished()
+    {
+        // FIXME: Get rid of this boolean.
+        wasPostTestScriptParsed = true;
+        if (window.jsTestIsAsync) {
+            if (window.testRunner)
+                testRunner.waitUntilDone();
+            if (window.wasFinishJSTestCalled)
+                finishJSTest();
+        } else
+            finishJSTest();
+    }
+
+    if (!isWorker()) {
+        window.addEventListener('DOMContentLoaded', handleTestFinished, false);
         insertStyleSheet();
+    }
 
     if (!self.isOnErrorTest) {
         self.onerror = function(message)
@@ -82,7 +97,6 @@ var description, debug, successfullyParsed, errorMessage;
             errorMessage = message;
         };
     }
-
 })();
 
 function isWorker()