Allow URLRequests from one context to have different NetworkDelegates.

net/url_request/url_request_http_job.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/url_request/url_request_http_job.h"
 
 #include "base/base_switches.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
@@ skipping 430 matching lines @@
     }
 
     if (rv == OK) {
       transaction_->SetBeforeNetworkStartCallback(
           base::Bind(&URLRequestHttpJob::NotifyBeforeNetworkStart,
                      base::Unretained(this)));
       transaction_->SetBeforeProxyHeadersSentCallback(
           base::Bind(&URLRequestHttpJob::NotifyBeforeSendProxyHeadersCallback,
                      base::Unretained(this)));
 
-      if (!throttling_entry_.get() ||
-          !throttling_entry_->ShouldRejectRequest(*request_)) {
+      if (!throttling_entry_ ||
+          !throttling_entry_->ShouldRejectRequest(
+              *request_, network_delegate())) {
         rv = transaction_->Start(
             &request_info_, start_callback_, request_->net_log());
         start_time_ = base::TimeTicks::Now();
       } else {
         // Special error code for the exponential back-off module.
         rv = ERR_TEMPORARILY_THROTTLED;
       }
     }
   }
 
@@ skipping 1059 matching lines @@
   return override_response_headers_.get() ?
              override_response_headers_.get() :
              transaction_->GetResponseInfo()->headers.get();
 }
 
 void URLRequestHttpJob::NotifyURLRequestDestroyed() {
   awaiting_callback_ = false;
 }
 
 }  // namespace net