cleanup: Remove NOTIFICATION_EXTENSION_UNLOADED from managed_user_service.cc

chrome/browser/managed_mode/managed_user_service.h

 // Copyright (c) 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_MANAGED_MODE_MANAGED_USER_SERVICE_H_
 #define CHROME_BROWSER_MANAGED_MODE_MANAGED_USER_SERVICE_H_
 
 #include <set>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/prefs/pref_change_registrar.h"
+#include "base/scoped_observer.h"
 #include "base/strings/string16.h"
 #include "chrome/browser/managed_mode/managed_mode_url_filter.h"
 #include "chrome/browser/managed_mode/managed_users.h"
 #include "chrome/browser/sync/profile_sync_service_observer.h"
 #include "chrome/browser/ui/browser_list_observer.h"
 #include "components/keyed_service/core/keyed_service.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_contents.h"
+#include "extensions/browser/extension_registry_observer.h"
 #include "extensions/browser/management_policy.h"
 
 class Browser;
 class GoogleServiceAuthError;
 class ManagedModeURLFilter;
 class ManagedModeSiteList;
 class ManagedUserRegistrationUtility;
 class ManagedUserSettingsService;
 class PermissionRequestCreator;
 class Profile;
 
+namespace extensions {
+class ExtensionRegistry;
+}
+
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
 
 // This class handles all the information related to a given managed profile
 // (e.g. the installed content packs, the default URL filtering behavior, or
 // manual whitelist/blacklist overrides).
 class ManagedUserService : public KeyedService,
                            public extensions::ManagementPolicy::Provider,
                            public ProfileSyncServiceObserver,
-                           public content::NotificationObserver,
+                           public extensions::ExtensionRegistryObserver,
                            public chrome::BrowserListObserver {
  public:
   typedef std::vector<base::string16> CategoryList;
   typedef base::Callback<void(content::WebContents*)> NavigationBlockedCallback;
   typedef base::Callback<void(const GoogleServiceAuthError&)> AuthErrorCallback;
 
   enum ManualBehavior {
     MANUAL_NONE = 0,
     MANUAL_ALLOW,
     MANUAL_BLOCK
@@ skipping 83 matching lines @@
   // extensions::ManagementPolicy::Provider implementation:
   virtual std::string GetDebugPolicyProviderName() const OVERRIDE;
   virtual bool UserMayLoad(const extensions::Extension* extension,
                            base::string16* error) const OVERRIDE;
   virtual bool UserMayModifySettings(const extensions::Extension* extension,
                                      base::string16* error) const OVERRIDE;
 
   // ProfileSyncServiceObserver implementation:
   virtual void OnStateChanged() OVERRIDE;
 
-  // content::NotificationObserver implementation:
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
+  // extensions::ExtensionRegistryObserver implementation.
+  virtual void OnExtensionLoaded(
+      content::BrowserContext* browser_context,
+      const extensions::Extension* extension) OVERRIDE;
+  virtual void OnExtensionUnloaded(
+      content::BrowserContext* browser_context,
+      const extensions::Extension* extension,
+      extensions::UnloadedExtensionInfo::Reason reason) OVERRIDE;
 
   // chrome::BrowserListObserver implementation:
   virtual void OnBrowserSetLastActive(Browser* browser) OVERRIDE;
 
  private:
   friend class ManagedUserServiceExtensionTestBase;
   friend class ManagedUserServiceFactory;
   FRIEND_TEST_ALL_PREFIXES(ManagedUserServiceTest, ClearOmitOnRegistration);
 
   // A bridge from ManagedMode (which lives on the UI thread) to the
@@ skipping 61 matching lines @@
   // corresponding preference is changed.
   void UpdateManualHosts();
 
   // Updates the manual overrides for URLs in the URL filters when the
   // corresponding preference is changed.
   void UpdateManualURLs();
 
   // Owns us via the KeyedService mechanism.
   Profile* profile_;
 
-  content::NotificationRegistrar registrar_;
+  ScopedObserver<extensions::ExtensionRegistry,
+                 extensions::ExtensionRegistryObserver>
+      extension_registry_observer_;
+
   PrefChangeRegistrar pref_change_registrar_;
 
   // True iff we're waiting for the Sync service to be initialized.
   bool waiting_for_sync_initialization_;
   bool is_profile_active_;
 
   std::vector<NavigationBlockedCallback> navigation_blocked_callbacks_;
 
   // Sets a profile in elevated state for testing if set to true.
   bool elevated_for_testing_;
 
   // True only when |Shutdown()| method has been called.
   bool did_shutdown_;
 
   URLFilterContext url_filter_context_;
 
   // Used to create permission requests.
   scoped_ptr<PermissionRequestCreator> permissions_creator_;
 
   // True iff we are waiting for a permission request to be issued.
   bool waiting_for_permissions_;
 
   base::WeakPtrFactory<ManagedUserService> weak_ptr_factory_;
 };
 
 #endif  // CHROME_BROWSER_MANAGED_MODE_MANAGED_USER_SERVICE_H_