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

content/browser/webui/url_data_manager_backend.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 CONTENT_BROWSER_WEBUI_URL_DATA_MANAGER_BACKEND_H_
 #define CONTENT_BROWSER_WEBUI_URL_DATA_MANAGER_BACKEND_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 21 matching lines @@
 class URLRequestChromeJob;
 
 // URLDataManagerBackend is used internally by ChromeURLDataManager on the IO
 // thread. In most cases you can use the API in ChromeURLDataManager and ignore
 // this class. URLDataManagerBackend is owned by ResourceContext.
 class URLDataManagerBackend : public base::SupportsUserData::Data {
  public:
   typedef int RequestID;
 
   URLDataManagerBackend();
-  virtual ~URLDataManagerBackend();
+  ~URLDataManagerBackend() override;
 
   // Invoked to create the protocol handler for chrome://. |is_incognito| should
   // be set for incognito profiles. Called on the UI thread.
   static net::URLRequestJobFactory::ProtocolHandler* CreateProtocolHandler(
       content::ResourceContext* resource_context,
       bool is_incognito,
       AppCacheServiceImpl* appcache_service,
       ChromeBlobStorageContext* blob_storage_context);
 
   // Adds a DataSource to the collection of data sources.
@@ skipping 53 matching lines @@
 
 // Creates protocol handler for chrome-devtools://. |is_incognito| should be
 // set for incognito profiles.
 net::URLRequestJobFactory::ProtocolHandler*
 CreateDevToolsProtocolHandler(content::ResourceContext* resource_context,
                               bool is_incognito);
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEBUI_URL_DATA_MANAGER_BACKEND_H_