Remove NOTIFICATION_EXTENSION_UNLOADED_DEPRECATED from c/b/e/api

chrome/browser/extensions/api/signed_in_devices/signed_in_devices_manager.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_EXTENSIONS_API_SIGNED_IN_DEVICES_SIGNED_IN_DEVICES_MANAGER_H__
 #define CHROME_BROWSER_EXTENSIONS_API_SIGNED_IN_DEVICES_SIGNED_IN_DEVICES_MANAGER_H__
 
 #include <string>
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_vector.h"
+#include "base/scoped_observer.h"
 #include "chrome/browser/sync/glue/synced_device_tracker.h"
 #include "extensions/browser/browser_context_keyed_api_factory.h"
 #include "extensions/browser/event_router.h"
+#include "extensions/browser/extension_registry_observer.h"
 
 class Profile;
 
 namespace content {
 class BrowserContext;
 class NotificationDetails;
 class NotificationObserver;
 class NotificationRegistrar;
 }  // namespace content
 
 namespace extensions {
 class BrowserContextKeyedAPI;
+class ExtensionRegistry;
 
 struct EventListenerInfo;
 
 // An object of this class is created for each extension that has registered
 // to be notified for device info change. The objects listen for notification
 // from sync on device info change. On receiving the notification the
 // new list of devices is constructed and passed back to the extension.
 // The extension id is part of this object as it is needed to fill in the
 // public ids for devices(public ids for a device, is not the same for
 // all extensions).
@@ skipping 10 matching lines @@
     return extension_id_;
   }
 
  private:
   std::string extension_id_;
   Profile* const profile_;
   content::NotificationRegistrar registrar_;
 };
 
 class SignedInDevicesManager : public BrowserContextKeyedAPI,
-                               public content::NotificationObserver,
+                               public ExtensionRegistryObserver,
                                public EventRouter::Observer {
  public:
   // Default constructor used for testing.
   SignedInDevicesManager();
   explicit SignedInDevicesManager(content::BrowserContext* context);
   virtual ~SignedInDevicesManager();
 
   // BrowserContextKeyedAPI implementation.
   static BrowserContextKeyedAPIFactory<SignedInDevicesManager>*
       GetFactoryInstance();
 
-  // NotificationObserver:
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
+  // ExtensionRegistryObserver implementation.
+  virtual void OnExtensionUnloaded(
+      content::BrowserContext* browser_context,
+      const Extension* extension,
+      UnloadedExtensionInfo::Reason reason) OVERRIDE;
 
   // EventRouter::Observer:
   virtual void OnListenerAdded(const EventListenerInfo& details) OVERRIDE;
   virtual void OnListenerRemoved(const EventListenerInfo& details) OVERRIDE;
 
  private:
   friend class BrowserContextKeyedAPIFactory<SignedInDevicesManager>;
 
   // BrowserContextKeyedAPI implementation.
   static const char* service_name() {
     return "SignedInDevicesManager";
   }
   static const bool kServiceHasOwnInstanceInIncognito = true;
 
   void RemoveChangeObserverForExtension(const std::string& extension_id);
 
   Profile* const profile_;
-  content::NotificationRegistrar registrar_;
   ScopedVector<SignedInDevicesChangeObserver> change_observers_;
 
+  // Listen to extension unloaded notification.
+  ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver>
+      extension_registry_observer_;
+
   FRIEND_TEST_ALL_PREFIXES(SignedInDevicesManager, UpdateListener);
 
   DISALLOW_COPY_AND_ASSIGN(SignedInDevicesManager);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SIGNED_IN_DEVICES_SIGNED_IN_DEVICES_MANAGER_H__