New post-sideload UI:

chrome/browser/extensions/extension_service.h

 // Copyright (c) 2012 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_EXTENSIONS_EXTENSION_SERVICE_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_
 
 #include <list>
 #include <map>
 #include <set>
@@ skipping 568 matching lines @@
   // extensions.
   void IdentifyAlertableExtensions();
 
   // Given an ExtensionErrorUI alert, populates it with any extensions that
   // need alerting. Returns true if the alert should be displayed at all.
   //
   // This method takes the extension_error_ui argument rather than using
   // the member variable to make it easier to test the method in isolation.
   bool PopulateExtensionErrorUI(ExtensionErrorUI* extension_error_ui);
 
-  // Marks alertable extensions as acknowledged, after the user presses the
-  // accept button.
-  void HandleExtensionAlertAccept();
+  // Checks if there are any new external extensions to notify the user about.
+  void UpdateExternalExtensionAlert();
 
   // Given a (presumably just-installed) extension id, mark that extension as
   // acknowledged.
   void AcknowledgeExternalExtension(const std::string& id);
 
   // Opens the Extensions page because the user wants to get more details
   // about the alerts.
   void HandleExtensionAlertDetails();
 
   // Called when the extension alert is closed.
   void HandleExtensionAlertClosed();
 
+  // Marks alertable extensions as acknowledged, after the user presses the
+  // accept button.
+  void HandleExtensionAlertAccept();
+
   // content::NotificationObserver
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   // Whether there are any apps installed. Component apps are not included.
   bool HasApps() const;
 
   // Gets the set of loaded app ids. Component apps are not included.
   extensions::ExtensionIdSet GetAppIds() const;
@@ skipping 274 matching lines @@
 #endif
 
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            InstallAppsWithUnlimtedStorage);
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            InstallAppsAndCheckStorageProtection);
   DISALLOW_COPY_AND_ASSIGN(ExtensionService);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_