Migrate upgrade notifications to observer

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 <map>
 #include <memory>
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/gtest_prod_util.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 #include "base/strings/string16.h"
 #include "chrome/browser/extensions/blacklist.h"
 #include "chrome/browser/extensions/extension_management.h"
 #include "chrome/browser/extensions/install_gate.h"
 #include "chrome/browser/extensions/pending_extension_manager.h"
+#include "chrome/browser/upgrade_observer.h"
 #include "components/sync/model/string_ordinal.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "extensions/browser/crx_file_info.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/external_provider_interface.h"
 #include "extensions/browser/install_flag.h"
 #include "extensions/browser/process_manager.h"
 #include "extensions/browser/uninstall_reason.h"
 #include "extensions/common/extension.h"
@@ skipping 138 matching lines @@
   virtual base::SequencedTaskRunner* GetFileTaskRunner() = 0;
 };
 
 // Manages installed and running Chromium extensions. An instance is shared
 // between normal and incognito profiles.
 class ExtensionService
     : public ExtensionServiceInterface,
       public extensions::ExternalProviderInterface::VisitorInterface,
       public content::NotificationObserver,
       public extensions::Blacklist::Observer,
-      public extensions::ExtensionManagement::Observer {
+      public extensions::ExtensionManagement::Observer,
+      public UpgradeObserver {
  public:
   // Attempts to uninstall an extension from a given ExtensionService. Returns
   // true iff the target extension exists.
   static bool UninstallExtensionHelper(ExtensionService* extensions_service,
                                        const std::string& extension_id,
                                        extensions::UninstallReason reason);
 
   // Constructor stores pointers to |profile| and |extension_prefs| but
   // ownership remains at caller.
   ExtensionService(Profile* profile,
@@ skipping 261 matching lines @@
   void ReloadExtensionImpl(const std::string& extension_id, bool be_noisy);
 
   // content::NotificationObserver implementation:
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
   // extensions::Blacklist::Observer implementation.
   void OnBlacklistUpdated() override;
 
+  // UpgradeObserver implementation.
+  void OnUpgradeRecommended() override;
+
   // Similar to FinishInstallation, but first checks if there still is an update
   // pending for the extension, and makes sure the extension is still idle.
   void MaybeFinishDelayedInstallation(const std::string& extension_id);
 
   // For the extension in |version_path| with |id|, check to see if it's an
   // externally managed extension.  If so, uninstall it.
   void CheckExternalUninstall(const std::string& id);
 
   // Attempt to enable all disabled extensions which the only disabled reason is
   // reloading.
@@ skipping 270 matching lines @@
                            GreylistUnknownDontChange);
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            ManagementPolicyProhibitsEnableOnInstalled);
   FRIEND_TEST_ALL_PREFIXES(ExtensionServiceTest,
                            BlockAndUnblockBlacklistedExtension);
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionService);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_SERVICE_H_