TBR: Revert "Implement chromium.self in content scripts..."

chrome/test/data/extensions/content_script_inject/script3.js

-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-var gotDOMContentLoadedEvent = false;
-
-// Test that at parse time, we have the document element.
-// This basically tests that we don't get injected too early (before there is
-// a document element).
-var hasDocumentElement = (document.documentElement.tagName == "HTML");
-
-// TODO(aa): We would like to add more tests here verifying that we aren't
-// injected too late. For example, we could test that there are zero child
-// nodes to the documentElement, but unfortunately run_at:document_start is
-// currently buggy and doesn't guarantee that.
-
-window.addEventListener("DOMContentLoaded", function() {
-  gotDOMContentLoadedEvent = true;
-}, false);
-
-// Don't run tests until onload so that we can test that DOMContentLoaded and
-// onload happen after this script runs.  
-window.addEventListener("load", runAllTests, false);
-
-function testRunAtDocumentStart() {
-  assert(hasDocumentElement);
-}
-
-function testGotLoadEvents() {
-  assert(gotDOMContentLoadedEvent);
-}