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

chrome/browser/autocomplete/keyword_extensions_delegate_impl.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.
 //
 // KeywordExtensionsDelegateImpl contains the extensions-only logic used by
 // KeywordProvider. Overrides KeywordExtensionsDelegate which does nothing.
 
 #ifndef CHROME_BROWSER_AUTOCOMPLETE_KEYWORD_EXTENSIONS_DELEGATE_IMPL_H_
 #define CHROME_BROWSER_AUTOCOMPLETE_KEYWORD_EXTENSIONS_DELEGATE_IMPL_H_
 
@@ skipping 11 matching lines @@
 #if !defined(ENABLE_EXTENSIONS)
 #error "Should not be included when extensions are disabled"
 #endif
 
 class Profile;
 
 class KeywordExtensionsDelegateImpl : public KeywordExtensionsDelegate,
                                       public content::NotificationObserver {
  public:
   KeywordExtensionsDelegateImpl(Profile* profile, KeywordProvider* provider);
-  virtual ~KeywordExtensionsDelegateImpl();
+  ~KeywordExtensionsDelegateImpl() override;
 
  private:
   // KeywordExtensionsDelegate:
-  virtual void IncrementInputId() override;
-  virtual bool IsEnabledExtension(const std::string& extension_id) override;
-  virtual bool Start(const AutocompleteInput& input,
-                     bool minimal_changes,
-                     const TemplateURL* template_url,
-                     const base::string16& remaining_input) override;
-  virtual void EnterExtensionKeywordMode(
-      const std::string& extension_id) override;
-  virtual void MaybeEndExtensionKeywordMode() override;
+  void IncrementInputId() override;
+  bool IsEnabledExtension(const std::string& extension_id) override;
+  bool Start(const AutocompleteInput& input,
+             bool minimal_changes,
+             const TemplateURL* template_url,
+             const base::string16& remaining_input) override;
+  void EnterExtensionKeywordMode(const std::string& extension_id) override;
+  void MaybeEndExtensionKeywordMode() override;
 
   // content::NotificationObserver:
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) override;
+  void Observe(int type,
+               const content::NotificationSource& source,
+               const content::NotificationDetails& details) override;
 
   ACMatches* matches() { return &provider_->matches_; }
   void set_done(bool done) {
     provider_->done_ = done;
   }
 
   // Notifies the KeywordProvider about asynchronous updates from the extension.
   void OnProviderUpdate(bool updated_matches);
 
   // Identifies the current input state. This is incremented each time the
@@ skipping 21 matching lines @@
   content::NotificationRegistrar registrar_;
 
   // We need our input IDs to be unique across all profiles, so we keep a global
   // UID that each provider uses.
   static int global_input_uid_;
 
   DISALLOW_COPY_AND_ASSIGN(KeywordExtensionsDelegateImpl);
 };
 
 #endif  // CHROME_BROWSER_AUTOCOMPLETE_KEYWORD_EXTENSIONS_DELEGATE_IMPL_H_