[Extensions] Update extensions UI to observe events and add test

chrome/browser/ui/webui/extensions/extension_settings_browsertest.h

 // Copyright 2013 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_EXTENSIONS_EXTENSION_SETTINGS_BROWSERTEST_H_
 #define CHROME_BROWSER_UI_WEBUI_EXTENSIONS_EXTENSION_SETTINGS_BROWSERTEST_H_
 
 #include "chrome/browser/extensions/extension_test_notification_observer.h"
 #include "chrome/test/base/web_ui_browser_test.h"
 #include "extensions/browser/test_management_policy.h"
@@ skipping 14 matching lines @@
   const std::string& last_loaded_extension_id() {
     return observer_->last_loaded_extension_id();
   }
 
   void SetUpOnMainThread() override;
 
   void InstallGoodExtension();
 
   void InstallErrorsExtension();
 
+  void InstallSharedModule();
+
+  void InstallPackagedApp();
+
   void AddManagedPolicyProvider();
 
+  void SetAutoConfirmUninstall();
+
  private:
   bool WaitForExtensionViewsToLoad();
   const extensions::Extension* InstallUnpackedExtension(
-      const base::FilePath& path, const char* id);
+      const base::FilePath& path);
   const extensions::Extension* InstallExtension(const base::FilePath& path);
 
   scoped_ptr<ExtensionTestNotificationObserver> observer_;
 
   // The default profile to be used.
   Profile* profile_;
 
   // Used to simulate managed extensions (by being registered as a provider).
   extensions::TestManagementPolicyProvider policy_provider_;
 
+  base::FilePath test_data_dir_;
+
   DISALLOW_COPY_AND_ASSIGN(ExtensionSettingsUIBrowserTest);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_EXTENSIONS_EXTENSION_SETTINGS_BROWSERTEST_H_