Remove the HANDLED_EXTERNALLY status code.

content/public/common/common_param_traits.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 "content/public/common/common_param_traits.h"
 
 #include "content/public/common/content_constants.h"
 #include "content/public/common/referrer.h"
 #include "net/base/host_port_pair.h"
 #include "net/base/upload_data.h"
@@ skipping 81 matching lines @@
 void ParamTraits<net::URLRequestStatus>::Log(const param_type& p,
                                              std::string* l) {
   std::string status;
   switch (p.status()) {
     case net::URLRequestStatus::SUCCESS:
       status = "SUCCESS";
       break;
     case net::URLRequestStatus::IO_PENDING:
       status = "IO_PENDING ";
       break;
-    case net::URLRequestStatus::HANDLED_EXTERNALLY:
-      status = "HANDLED_EXTERNALLY";
-      break;
     case net::URLRequestStatus::CANCELED:
       status = "CANCELED";
       break;
     case net::URLRequestStatus::FAILED:
       status = "FAILED";
       break;
     default:
       status = "UNKNOWN";
       break;
   }
@@ skipping 501 matching lines @@
 #undef CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_MACROS_H_
 #include "content/public/common/common_param_traits_macros.h"
 }  // namespace IPC
 
 // Generate param traits log methods.
 #include "ipc/param_traits_log_macros.h"
 namespace IPC {
 #undef CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_MACROS_H_
 #include "content/public/common/common_param_traits_macros.h"
 }  // namespace IPC