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

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

Index: chrome/browser/ui/webui/extensions/extension_settings_browsertest.h
diff --git a/chrome/browser/ui/webui/extensions/extension_settings_browsertest.h b/chrome/browser/ui/webui/extensions/extension_settings_browsertest.h
index cfa6462e85b4a3bf30ff043047498b494af5e806..5a8052b90240ed77630b08e99d73d7bda27a2571 100644
--- a/chrome/browser/ui/webui/extensions/extension_settings_browsertest.h
+++ b/chrome/browser/ui/webui/extensions/extension_settings_browsertest.h
@@ -32,12 +32,18 @@ class ExtensionSettingsUIBrowserTest : public WebUIBrowserTest {
 
   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_;
@@ -48,6 +54,8 @@ class ExtensionSettingsUIBrowserTest : public WebUIBrowserTest {
   // 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);
 };