Standardize usage of virtual/override/final in chrome/

chrome/common/extensions/api/extension_action/action_info.cc

 // 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.
 
 #include "chrome/common/extensions/api/extension_action/action_info.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/common/extensions/api/commands/commands_handler.h"
 #include "extensions/common/constants.h"
 #include "extensions/common/error_utils.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/manifest_constants.h"
 #include "extensions/common/manifest_handler_helpers.h"
 
 namespace extensions {
 
 namespace errors = manifest_errors;
 namespace keys = manifest_keys;
 
 namespace {
 
 // The manifest data container for the ActionInfos for BrowserActions,
 // PageActions and SystemIndicators.
 struct ActionInfoData : public Extension::ManifestData {
   explicit ActionInfoData(ActionInfo* action_info);
-  virtual ~ActionInfoData();
+  ~ActionInfoData() override;
 
   // The action associated with the BrowserAction.
   scoped_ptr<ActionInfo> action_info;
 };
 
 ActionInfoData::ActionInfoData(ActionInfo* info) : action_info(info) {
 }
 
 ActionInfoData::~ActionInfoData() {
 }
@@ skipping 182 matching lines @@
 
 // static
 bool ActionInfo::IsVerboseInstallMessage(const Extension* extension) {
   const ActionInfo* page_action_info = GetPageActionInfo(extension);
   return page_action_info &&
       (CommandsInfo::GetPageActionCommand(extension) ||
        !page_action_info->default_icon.empty());
 }
 
 }  // namespace extensions