Move ProxyConfigService construction onto the IO thread.

net/url_request/url_request_context_builder.h

 // 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.
 
 // This class is useful for building a simple URLRequestContext. Most creators
 // of new URLRequestContexts should use this helper class to construct it. Call
 // any configuration params, and when done, invoke Build() to construct the
 // URLRequestContext. This URLRequestContext will own all its own storage.
 //
 // URLRequestContextBuilder and its associated params classes are initially
 // populated with "sane" default values. Read through the comments to figure out
 // what these are.
 
 #ifndef NET_URL_REQUEST_URL_REQUEST_CONTEXT_BUILDER_H_
 #define NET_URL_REQUEST_URL_REQUEST_CONTEXT_BUILDER_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "build/build_config.h"
 #include "net/base/net_export.h"
 
+namespace base {
+class SingleThreadTaskRunner;
+}  // namespace base
+
 namespace net {
 
 class HostMappingRules;
-class ProxyConfigService;
 class URLRequestContext;
 
 class NET_EXPORT URLRequestContextBuilder {
  public:
   struct NET_EXPORT HostResolverParams {
     HostResolverParams();
     ~HostResolverParams();
 
     // The limit on the number of parallel host resolutions.
     size_t parallelism;
@@ skipping 33 matching lines @@
     bool http_pipelining_enabled;
     uint16 testing_fixed_http_port;
     uint16 testing_fixed_https_port;
     std::string trusted_spdy_proxy;
   };
 
   URLRequestContextBuilder();
   ~URLRequestContextBuilder();
 
 #if defined(OS_LINUX)
-  void set_proxy_config_service(ProxyConfigService* proxy_config_service);
+  void set_glib_task_runner(base::SingleThreadTaskRunner* glib_task_runner);
 #endif  // defined(OS_LINUX)
 
   // Call this function to specify a hard-coded User-Agent for all requests that
   // don't have a User-Agent already set.
   void set_user_agent(const std::string& user_agent) {
     user_agent_ = user_agent;
   }
 
   // Allows for overriding the default HostResolver params.
   void set_host_resolver_params(
@@ skipping 14 matching lines @@
   void set_http_network_session_params(
       const HttpNetworkSessionParams& http_network_session_params) {
     http_network_session_params_ = http_network_session_params;
   }
 
   URLRequestContext* Build();
 
  private:
   std::string user_agent_;
   bool ftp_enabled_;
+#if defined(OS_LINUX)
+  base::SingleThreadTaskRunner* glib_task_runner_;
+#endif  // defined(OS_LINUX)
   HostResolverParams host_resolver_params_;
   bool http_cache_enabled_;
   HttpCacheParams http_cache_params_;
   HttpNetworkSessionParams http_network_session_params_;
-#if defined(OS_LINUX)
-  scoped_ptr<ProxyConfigService> proxy_config_service_;
-#endif  // defined(OS_LINUX)
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestContextBuilder);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_CONTEXT_BUILDER_H_