Fix header guards in //net.

net/http/failing_http_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 NET_FAILING_HTTP_TRANSACTION_FACTORY_H_
-#define NET_FAILING_HTTP_TRANSACTION_FACTORY_H_
+#ifndef NET_HTTP_FAILING_HTTP_TRANSACTION_FACTORY_H_
+#define NET_HTTP_FAILING_HTTP_TRANSACTION_FACTORY_H_
 
 #include <memory>
 
 #include "net/base/net_errors.h"
 #include "net/base/net_export.h"
 #include "net/base/request_priority.h"
 #include "net/http/http_transaction.h"
 #include "net/http/http_transaction_factory.h"
 
 namespace net {
@@ skipping 16 matching lines @@
   HttpCache* GetCache() override;
   HttpNetworkSession* GetSession() override;
 
  private:
   HttpNetworkSession* session_;
   Error error_;
 };
 
 }  // namespace net
 
-#endif  // NET_FAILING_HTTP_TRANSACTION_FACTORY_H_
+#endif  // NET_HTTP_FAILING_HTTP_TRANSACTION_FACTORY_H_