DevTools: Convert inspector-unit tests to use reusable test harness

third_party/WebKit/Source/devtools/front_end/shell/TestShell.js

+// Copyright 2016 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.
+
+Shell.TestShell = class {
+  /**
+   * @suppressGlobalPropertiesCheck
+   */
+  constructor() {
+    runOnWindowLoad(this.initializeUnitTest.bind(this));
+  }
+
+  /**
+   * @suppressGlobalPropertiesCheck
+   */
+  initializeUnitTest() {
+    var globalStorage = new Common.SettingsStorage(
+        {}, InspectorFrontendHost.setPreference, InspectorFrontendHost.removePreference,
+        InspectorFrontendHost.clearPreferences);
+    var storagePrefix = '';
+    var localStorage = new Common.SettingsStorage({}, undefined, undefined, undefined, storagePrefix);
+    Common.settings = new Common.Settings(globalStorage, localStorage);
+
+    UI.viewManager = new UI.ViewManager();
+    UI.initializeUIUtils(document, Common.settings.createSetting('uiTheme', 'default'));
+    UI.installComponentRootStyles(/** @type {!Element} */ (document.body));
+
+    UI.zoomManager = new UI.ZoomManager(self, InspectorFrontendHost);
+    UI.inspectorView = UI.InspectorView.instance();
+    UI.ContextMenu.initialize();
+    UI.ContextMenu.installHandler(document);
+    UI.Tooltip.installHandler(document);
+
+    var rootView = new UI.RootView();
+    UI.inspectorView.show(rootView.element);
+    rootView.attachToDocument(document);
+    TestRunner.executeTestScript();
+  }
+};
+
+new Shell.TestShell();