Remove some calls to URLRequestContext::network_delegate().

net/url_request/url_request.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.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/compiler_specific.h"
@@ skipping 436 matching lines @@
 
 void URLRequest::set_referrer_policy(ReferrerPolicy referrer_policy) {
   DCHECK(!is_pending_);
   referrer_policy_ = referrer_policy;
 }
 
 void URLRequest::set_delegate(Delegate* delegate) {
   delegate_ = delegate;
 }
 
+bool URLRequest::CanThrottle() const {
+  return !network_delegate_ || network_delegate_->CanThrottleRequest(*this);
+}
+
 void URLRequest::Start() {
   DCHECK_EQ(network_delegate_, context_->network_delegate());
 
   g_url_requests_started = true;
   response_info_.request_time = base::Time::Now();
 
   load_timing_info_ = LoadTimingInfo();
   load_timing_info_.request_start_time = response_info_.request_time;
   load_timing_info_.request_start = base::TimeTicks::Now();
 
@@ skipping 346 matching lines @@
   --redirect_limit_;
 
   Start();
   return OK;
 }
 
 const URLRequestContext* URLRequest::context() const {
   return context_;
 }
 
+NetworkDelegate* URLRequest::network_delegate() const {
+  return network_delegate_;
+}
+
 int64 URLRequest::GetExpectedContentSize() const {
   int64 expected_content_size = -1;
   if (job_)
     expected_content_size = job_->expected_content_size();
 
   return expected_content_size;
 }
 
 bool URLRequest::GetHSTSRedirect(GURL* redirect_url) const {
   const GURL& url = this->url();
@@ skipping 165 matching lines @@
       new base::debug::StackTrace(NULL, 0);
   *stack_trace_copy = stack_trace;
   stack_trace_.reset(stack_trace_copy);
 }
 
 const base::debug::StackTrace* URLRequest::stack_trace() const {
   return stack_trace_.get();
 }
 
 }  // namespace net