Refactor main URLRequestContext creation to use URLRequestContextBuilder

net/url_request/url_request_context.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_context.h"
 
 #include "base/compiler_specific.h"
 #include "base/debug/alias.h"
 #include "base/debug/stack_trace.h"
 #include "base/strings/string_util.h"
@@ skipping 22 matching lines @@
       throttler_manager_(nullptr),
       sdch_manager_(nullptr),
       network_quality_estimator_(nullptr),
       url_requests_(new std::set<const URLRequest*>) {
 }
 
 URLRequestContext::~URLRequestContext() {
   AssertNoURLRequests();
 }
 
+URLRequestContextStorage* URLRequestContext::storage() {
+  return nullptr;
+}
+
 void URLRequestContext::CopyFrom(const URLRequestContext* other) {
   // Copy URLRequestContext parameters.
   set_net_log(other->net_log_);
   set_host_resolver(other->host_resolver_);
   set_cert_verifier(other->cert_verifier_);
   set_channel_id_service(other->channel_id_service_);
   set_fraudulent_certificate_reporter(other->fraudulent_certificate_reporter_);
   set_http_auth_handler_factory(other->http_auth_handler_factory_);
   set_proxy_service(other->proxy_service_);
   set_ssl_config_service(other->ssl_config_service_.get());
@@ skipping 50 matching lines @@
     base::debug::Alias(&num_requests);
     base::debug::Alias(&has_delegate);
     base::debug::Alias(&load_flags);
     base::debug::Alias(&stack_trace);
     CHECK(false) << "Leaked " << num_requests << " URLRequest(s). First URL: "
                  << request->url().spec().c_str() << ".";
   }
 }
 
 }  // namespace net