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

chrome/browser/extensions/sandboxed_unpacker.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_SANDBOXED_UNPACKER_H_
 #define CHROME_BROWSER_EXTENSIONS_SANDBOXED_UNPACKER_H_
 
 #include <string>
 
 #include "base/files/file_path.h"
@@ skipping 136 matching lines @@
     INVALID_PATH_FOR_CATALOG,
     ERROR_SERIALIZING_CATALOG,
     ERROR_SAVING_CATALOG,
 
     NUM_FAILURE_REASONS
   };
 
   friend class ProcessHostClient;
   friend class SandboxedUnpackerTest;
 
-  virtual ~SandboxedUnpacker();
+  ~SandboxedUnpacker() override;
 
   // Set |temp_dir_| as a temporary directory to unpack the extension in.
   // Return true on success.
   virtual bool CreateTempDirectory();
 
   // Validates the signature of the extension and extract the key to
   // |public_key_|. Returns true if the signature validates, false otherwise.
   //
   // NOTE: Having this method here is a bit ugly. This code should really live
   // in extensions::Unpacker as it is not specific to sandboxed unpacking. It
   // was put here because we cannot run windows crypto code in the sandbox. But
   // we could still have this method statically on extensions::Unpacker so that
   // code just for unpacking is there and code just for sandboxing of unpacking
   // is here.
   bool ValidateSignature();
 
   // Starts the utility process that unpacks our extension.
   void StartProcessOnIOThread(const base::FilePath& temp_crx_path);
 
   // UtilityProcessHostClient
-  virtual bool OnMessageReceived(const IPC::Message& message) override;
-  virtual void OnProcessCrashed(int exit_code) override;
+  bool OnMessageReceived(const IPC::Message& message) override;
+  void OnProcessCrashed(int exit_code) override;
 
   // IPC message handlers.
   void OnUnpackExtensionSucceeded(const base::DictionaryValue& manifest);
   void OnUnpackExtensionFailed(const base::string16& error_message);
 
   void ReportFailure(FailureReason reason, const base::string16& message);
   void ReportSuccess(const base::DictionaryValue& original_manifest,
                      const SkBitmap& install_icon);
 
   // Overwrites original manifest with safe result from utility process.
@@ skipping 47 matching lines @@
   // when calling Extenion::Create() by the crx installer.
   int creation_flags_;
 
   // Sequenced task runner where file I/O operations will be performed at.
   scoped_refptr<base::SequencedTaskRunner> unpacker_io_task_runner_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_SANDBOXED_UNPACKER_H_