Standardize usage of virtual/override/final in chrome/browser/extensions/

chrome/browser/extensions/api/sync_file_system/extension_sync_event_observer.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_API_SYNC_FILE_SYSTEM_EXTENSION_SYNC_EVENT_OBSERVER_H_
 #define CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_EXTENSION_SYNC_EVENT_OBSERVER_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 12 matching lines @@
 namespace extensions {
 
 // Observes changes in SyncFileSystem and relays events to JS Extension API.
 class ExtensionSyncEventObserver : public sync_file_system::SyncEventObserver,
                                    public BrowserContextKeyedAPI {
  public:
   static BrowserContextKeyedAPIFactory<ExtensionSyncEventObserver>*
       GetFactoryInstance();
 
   explicit ExtensionSyncEventObserver(content::BrowserContext* context);
-  virtual ~ExtensionSyncEventObserver();
+  ~ExtensionSyncEventObserver() override;
 
   void InitializeForService(
       sync_file_system::SyncFileSystemService* sync_service);
 
   // KeyedService override.
-  virtual void Shutdown() override;
+  void Shutdown() override;
 
   // sync_file_system::SyncEventObserver interface implementation.
-  virtual void OnSyncStateUpdated(
-      const GURL& app_origin,
-      sync_file_system::SyncServiceState state,
-      const std::string& description) override;
+  void OnSyncStateUpdated(const GURL& app_origin,
+                          sync_file_system::SyncServiceState state,
+                          const std::string& description) override;
 
-  virtual void OnFileSynced(const storage::FileSystemURL& url,
-                            sync_file_system::SyncFileType file_type,
-                            sync_file_system::SyncFileStatus status,
-                            sync_file_system::SyncAction action,
-                            sync_file_system::SyncDirection direction) override;
+  void OnFileSynced(const storage::FileSystemURL& url,
+                    sync_file_system::SyncFileType file_type,
+                    sync_file_system::SyncFileStatus status,
+                    sync_file_system::SyncAction action,
+                    sync_file_system::SyncDirection direction) override;
 
  private:
   friend class BrowserContextKeyedAPIFactory<ExtensionSyncEventObserver>;
 
   // Returns an empty string if the extension |app_origin| cannot be found
   // in the installed extension list.
   std::string GetExtensionId(const GURL& app_origin);
 
   // BrowserContextKeyedAPI implementation.
   static const char* service_name() { return "ExtensionSyncEventObserver"; }
@@ skipping 11 matching lines @@
   DISALLOW_COPY_AND_ASSIGN(ExtensionSyncEventObserver);
 };
 
 template <>
 void BrowserContextKeyedAPIFactory<
     ExtensionSyncEventObserver>::DeclareFactoryDependencies();
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_API_SYNC_FILE_SYSTEM_EXTENSION_SYNC_EVENT_OBSERVER_H_