Standardize usage of virtual/override/final in net/

net/test/url_request/url_request_failed_job.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 NET_TEST_URL_REQUEST_URL_REQUEST_FAILED_JOB_H_
 #define NET_TEST_URL_REQUEST_URL_REQUEST_FAILED_JOB_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/memory/weak_ptr.h"
 #include "net/url_request/url_request_job.h"
 #include "url/gurl.h"
 
 namespace net {
 
 // This class simulates a URLRequestJob failing with a given error code while
 // trying to connect.
 class URLRequestFailedJob : public URLRequestJob {
  public:
   URLRequestFailedJob(URLRequest* request,
                       NetworkDelegate* network_delegate,
                       int net_error);
 
-  virtual void Start() override;
+  void Start() override;
 
   // Adds the testing URLs to the URLRequestFilter.
   static void AddUrlHandler();
   static void AddUrlHandlerForHostname(const std::string& hostname);
 
   // Given a net error code, constructs a mock URL that will return that error
   // asynchronously when started.  |net_error| must be a valid net error code
   // other than net::OK and net::ERR_IO_PENDING.
   static GURL GetMockHttpUrl(int net_error);
   static GURL GetMockHttpsUrl(int net_error);
 
   // URLRequestFailedJob must be added as a handler for |hostname| for
   // the returned URL to return |net_error|.
   static GURL GetMockHttpUrlForHostname(int net_error,
                                         const std::string& hostname);
   static GURL GetMockHttpsUrlForHostname(int net_error,
                                          const std::string& hostname);
 
  protected:
-  virtual ~URLRequestFailedJob();
+  ~URLRequestFailedJob() override;
 
  private:
   static URLRequestJob* Factory(URLRequest* request,
                                 NetworkDelegate* network_delegate,
                                 const std::string& scheme);
 
   // Simulate a failure.
   void StartAsync();
 
   const int net_error_;
 
   base::WeakPtrFactory<URLRequestFailedJob> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestFailedJob);
 };
 
 }  // namespace net
 
 #endif  // NET_TEST_URL_REQUEST_URL_REQUEST_FAILED_JOB_H_