Standardize usage of virtual/override/final in chrome/

chrome/common/extensions/manifest_handlers/automation.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 CHROME_COMMON_EXTENSIONS_MANIFEST_HANDLERS_AUTOMATION_H_
 #define CHROME_COMMON_EXTENSIONS_MANIFEST_HANDLERS_AUTOMATION_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
@@ skipping 25 matching lines @@
 // The parsed form of the automation manifest entry.
 struct AutomationInfo : public Extension::ManifestData {
  public:
   static const AutomationInfo* Get(const Extension* extension);
   static scoped_ptr<AutomationInfo> FromValue(
       const base::Value& value,
       std::vector<InstallWarning>* install_warnings,
       base::string16* error);
 
   static scoped_ptr<base::Value> ToValue(const AutomationInfo& info);
-  virtual ~AutomationInfo();
+  ~AutomationInfo() override;
 
   // true if the extension has requested 'desktop' permission.
   const bool desktop;
 
   // Returns the list of hosts that this extension can request an automation
   // tree from.
   const URLPatternSet matches;
 
   // Whether the extension is allowed interactive access (true) or read-only
   // access (false) to the automation tree.
   const bool interact;
 
  private:
   AutomationInfo();
   AutomationInfo(bool desktop, URLPatternSet matches, bool interact);
 
   static scoped_ptr<api::manifest_types::Automation> AsManifestType(
       const AutomationInfo& info);
 
   DISALLOW_COPY_AND_ASSIGN(AutomationInfo);
   friend class AutomationManifestPermission;
   friend class AutomationHandler;
 };
 
 // Parses the automation manifest entry.
 class AutomationHandler : public ManifestHandler {
  public:
   AutomationHandler();
-  virtual ~AutomationHandler();
+  ~AutomationHandler() override;
 
  private:
   // ManifestHandler implementation.
-  virtual bool Parse(Extension* extensions, base::string16* error) override;
+  bool Parse(Extension* extensions, base::string16* error) override;
 
-  virtual ManifestPermission* CreatePermission() override;
-  virtual ManifestPermission* CreateInitialRequiredPermission(
+  ManifestPermission* CreatePermission() override;
+  ManifestPermission* CreateInitialRequiredPermission(
       const Extension* extension) override;
-  virtual const std::vector<std::string> Keys() const override;
+  const std::vector<std::string> Keys() const override;
 
   DISALLOW_COPY_AND_ASSIGN(AutomationHandler);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_COMMON_EXTENSIONS_MANIFEST_HANDLERS_AUTOMATION_H_