[Chromecast] Fix ordering in PreMainMessageLoopRun

chromecast/browser/url_request_context_factory.cc

 // Copyright 2014 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 "chromecast/browser/url_request_context_factory.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 229 matching lines @@
   ct_policy_enforcer_.reset(new IgnoresCTPolicyEnforcer());
 
   http_auth_handler_factory_ =
       net::HttpAuthHandlerFactory::CreateDefault(host_resolver_.get());
 
   // TODO(lcwu): http://crbug.com/392352. For performance reasons,
   // a persistent (on-disk) HttpServerProperties might be desirable
   // in the future.
   http_server_properties_.reset(new net::HttpServerPropertiesImpl);
 
+  DCHECK(proxy_config_service_);
   proxy_service_ = net::ProxyService::CreateUsingSystemProxyResolver(
       std::move(proxy_config_service_), 0, NULL);
   system_dependencies_initialized_ = true;
 }
 
 void URLRequestContextFactory::InitializeMainContextDependencies(
     net::HttpTransactionFactory* transaction_factory,
     content::ProtocolHandlerMap* protocol_handlers,
     content::URLRequestInterceptorScopedVector request_interceptors) {
   if (main_dependencies_initialized_)
@@ skipping 211 matching lines @@
   if (media_getter_) {
     media_getter_->GetURLRequestContext()
         ->http_transaction_factory()
         ->GetSession()
         ->DisableQuic();
   }
 }
 
 }  // namespace shell
 }  // namespace chromecast