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

chrome/browser/spellchecker/spellcheck_message_filter.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_SPELLCHECKER_SPELLCHECK_MESSAGE_FILTER_H_
 #define CHROME_BROWSER_SPELLCHECKER_SPELLCHECK_MESSAGE_FILTER_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/spellchecker/spelling_service_client.h"
 #include "content/public/browser/browser_message_filter.h"
 
 class SpellCheckMarker;
 class SpellcheckService;
 struct SpellCheckResult;
 
 // A message filter implementation that receives spell checker requests from
 // SpellCheckProvider.
 class SpellCheckMessageFilter : public content::BrowserMessageFilter {
  public:
   explicit SpellCheckMessageFilter(int render_process_id);
 
   // content::BrowserMessageFilter implementation.
-  virtual void OverrideThreadForMessage(
-      const IPC::Message& message,
-      content::BrowserThread::ID* thread) override;
-  virtual bool OnMessageReceived(const IPC::Message& message) override;
+  void OverrideThreadForMessage(const IPC::Message& message,
+                                content::BrowserThread::ID* thread) override;
+  bool OnMessageReceived(const IPC::Message& message) override;
 
  private:
   friend class TestingSpellCheckMessageFilter;
 
-  virtual ~SpellCheckMessageFilter();
+  ~SpellCheckMessageFilter() override;
 
   void OnSpellCheckerRequestDictionary();
   void OnNotifyChecked(const base::string16& word, bool misspelled);
   void OnRespondDocumentMarkers(const std::vector<uint32>& markers);
 #if !defined(OS_MACOSX)
   void OnCallSpellingService(int route_id,
                              int identifier,
                              const base::string16& text,
                              std::vector<SpellCheckMarker> markers);
 
@@ skipping 23 matching lines @@
   // Can be overridden for testing.
   virtual SpellcheckService* GetSpellcheckService() const;
 
   int render_process_id_;
 
   // A JSON-RPC client that calls the Spelling service in the background.
   scoped_ptr<SpellingServiceClient> client_;
 };
 
 #endif  // CHROME_BROWSER_SPELLCHECKER_SPELLCHECK_MESSAGE_FILTER_H_