Remove URLRequest::Restart() because it is only referenced by unit tests

net/url_request/url_request_job.cc

 // Copyright (c) 2006-2009 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/url_request/url_request_job.h"
 
 #include "base/message_loop.h"
 #include "base/string_util.h"
 #include "net/base/auth.h"
 #include "net/base/io_buffer.h"
@@ skipping 517 matching lines @@
   }
 }
 
 void URLRequestJob::NotifyCanceled() {
   if (!done_) {
     NotifyDone(URLRequestStatus(URLRequestStatus::CANCELED,
                                 net::ERR_ABORTED));
   }
 }
 
-void URLRequestJob::NotifyRestartRequired() {
-  DCHECK(!has_handled_response_);
-  if (GetStatus().status() != URLRequestStatus::CANCELED)
-    request_->Restart();
-}
-
 bool URLRequestJob::FilterHasData() {
     return filter_.get() && filter_->stream_data_len();
 }
 
 void URLRequestJob::RecordBytesRead(int bytes_read) {
   if (is_profiling()) {
     ++(metrics_->number_of_read_IO_);
     metrics_->total_bytes_read_ += bytes_read;
   }
   filter_input_byte_count_ += bytes_read;
@@ skipping 174 matching lines @@
                                   packet_times_[4] - packet_times_[3],
                                   base::TimeDelta::FromMilliseconds(1),
                                   base::TimeDelta::FromSeconds(10), 100);
       return;
     }
     default:
       NOTREACHED();
       return;
   }
 }