Standardize usage of virtual/override/final in chrome/browser/devtools/

chrome/browser/devtools/devtools_network_transaction_factory.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_BROWSER_DEVTOOLS_DEVTOOLS_NETWORK_TRANSACTION_FACTORY_H_
 #define CHROME_BROWSER_DEVTOOLS_DEVTOOLS_NETWORK_TRANSACTION_FACTORY_H_
 
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "net/base/request_priority.h"
 #include "net/http/http_transaction_factory.h"
 
 class DevToolsNetworkController;
 
 namespace net {
 class HttpCache;
 class HttpNetworkSession;
 class HttpTransaction;
 }
 
 // NetworkTransactionFactory wraps HttpNetworkTransactions.
 class DevToolsNetworkTransactionFactory : public net::HttpTransactionFactory {
  public:
   DevToolsNetworkTransactionFactory(
       DevToolsNetworkController* controller,
       net::HttpNetworkSession* session);
-  virtual ~DevToolsNetworkTransactionFactory();
+  ~DevToolsNetworkTransactionFactory() override;
 
   // net::HttpTransactionFactory methods:
-  virtual int CreateTransaction(
-      net::RequestPriority priority,
-      scoped_ptr<net::HttpTransaction>* trans) override;
-  virtual net::HttpCache* GetCache() override;
-  virtual net::HttpNetworkSession* GetSession() override;
+  int CreateTransaction(net::RequestPriority priority,
+                        scoped_ptr<net::HttpTransaction>* trans) override;
+  net::HttpCache* GetCache() override;
+  net::HttpNetworkSession* GetSession() override;
 
  private:
   DevToolsNetworkController* controller_;
   scoped_ptr<net::HttpTransactionFactory> network_layer_;
 
   DISALLOW_COPY_AND_ASSIGN(DevToolsNetworkTransactionFactory);
 };
 
 #endif  // CHROME_BROWSER_DEVTOOLS_DEVTOOLS_NETWORK_TRANSACTION_FACTORY_H_