Implement chromium.self in content scripts, fix bugs

chrome/test/data/extensions/content_script_inject/script1b.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.
+
+// This tests that we are running in the same global context as script1a.js.
+function testScriptFilesRunInSameContext() {
+  assert(script1_var === 1);
+}
+
+// This tests that our relationship to content is working correctly.
+// a) We should not see content globals in our global scope.
+// b) We should have a contentWindow object that looks like a DOM Window.
+// c) We should be able to access content globals via contentWindow.
+function testContentInteraction() {
+  assert(typeof content_var == "undefined");
+  assert(typeof contentWindow != "undefined");
+  assert(contentWindow.location.href.match(/content_script_inject_page.html$/));
+  assert(contentWindow.content_var == "hello");
+}
+
+// Test that our css in script1.css was injected successfully.
+function testCSSWasInjected() {
+  assert(document.defaultView.getComputedStyle(
+      document.body, null)["background-color"] == "rgb(255, 0, 0)");
+}
+
+runAllTests();