Standardize usage of virtual/override/final in extensions/

extensions/common/api/sockets/sockets_manifest_permission.h

 // Copyright 2014 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 EXTENSIONS_COMMON_API_SOCKETS_SOCKETS_MANIFEST_PERMISSION_H_
 #define EXTENSIONS_COMMON_API_SOCKETS_SOCKETS_MANIFEST_PERMISSION_H_
 
 #include <set>
 #include <vector>
 
 #include "extensions/common/install_warning.h"
 #include "extensions/common/permissions/manifest_permission.h"
 #include "extensions/common/permissions/socket_permission_entry.h"
 
 namespace content {
 struct SocketPermissionRequest;
 }
 
 namespace extensions {
 class Extension;
 }
 
 namespace extensions {
 
 class SocketsManifestPermission : public ManifestPermission {
  public:
   typedef std::set<SocketPermissionEntry> SocketPermissionEntrySet;
   SocketsManifestPermission();
-  virtual ~SocketsManifestPermission();
+  ~SocketsManifestPermission() override;
 
   // Tries to construct the info based on |value|, as it would have appeared in
   // the manifest. Sets |error| and returns an empty scoped_ptr on failure.
   static scoped_ptr<SocketsManifestPermission> FromValue(
       const base::Value& value,
       base::string16* error);
 
   bool CheckRequest(const Extension* extension,
                     const content::SocketPermissionRequest& request) const;
 
   void AddPermission(const SocketPermissionEntry& entry);
 
   // extensions::ManifestPermission overrides.
-  virtual std::string name() const override;
-  virtual std::string id() const override;
-  virtual bool HasMessages() const override;
-  virtual PermissionMessages GetMessages() const override;
-  virtual bool FromValue(const base::Value* value) override;
-  virtual scoped_ptr<base::Value> ToValue() const override;
-  virtual ManifestPermission* Diff(const ManifestPermission* rhs) const
-      override;
-  virtual ManifestPermission* Union(const ManifestPermission* rhs) const
-      override;
-  virtual ManifestPermission* Intersect(const ManifestPermission* rhs) const
-      override;
+  std::string name() const override;
+  std::string id() const override;
+  bool HasMessages() const override;
+  PermissionMessages GetMessages() const override;
+  bool FromValue(const base::Value* value) override;
+  scoped_ptr<base::Value> ToValue() const override;
+  ManifestPermission* Diff(const ManifestPermission* rhs) const override;
+  ManifestPermission* Union(const ManifestPermission* rhs) const override;
+  ManifestPermission* Intersect(const ManifestPermission* rhs) const override;
 
   const SocketPermissionEntrySet& entries() const { return permissions_; }
 
  private:
   bool AddAnyHostMessage(PermissionMessages& messages) const;
   void AddSubdomainHostMessage(PermissionMessages& messages) const;
   void AddSpecificHostMessage(PermissionMessages& messages) const;
   void AddNetworkListMessage(PermissionMessages& messages) const;
 
   SocketPermissionEntrySet permissions_;
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_COMMON_API_SOCKETS_SOCKETS_MANIFEST_PERMISSION_H_