Update {virtual,override,final} to follow C++11 style in net.

net/test/spawned_test_server/spawner_communicator.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 "net/test/spawned_test_server/spawner_communicator.h"
 
 #include "base/json/json_reader.h"
 #include "base/logging.h"
 #include "base/strings/stringprintf.h"
 #include "base/supports_user_data.h"
@@ skipping 29 matching lines @@
         buf_(new IOBuffer(kBufferSize)),
         result_code_(result_code),
         data_received_(data_received),
         response_started_count_(0) {
     DCHECK(result_code);
     *result_code_ = OK;
     DCHECK(data_received);
     data_received_->clear();
   }
 
-  virtual ~SpawnerRequestData() {}
+  ~SpawnerRequestData() override {}
 
   bool DoesRequestIdMatch(int request_id) const {
     return request_id_ == request_id;
   }
 
   IOBuffer* buf() const { return buf_.get(); }
 
   bool IsResultOK() const { return *result_code_ == OK; }
 
   void ClearReceivedData() { data_received_->clear(); }
@@ skipping 310 matching lines @@
   std::string server_return_data;
   int result_code;
   SendCommandAndWaitForResult("kill", "", &result_code, &server_return_data);
   Shutdown();
   if (OK != result_code || server_return_data != "killed")
     return false;
   return true;
 }
 
 }  // namespace net