Extended: Add "system" URLRequestContext

chrome/browser/io_thread.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_IO_THREAD_H_
 #define CHROME_BROWSER_IO_THREAD_H_
 #pragma once
 
 #include <list>
 #include <string>
 #include "base/basictypes.h"
 #include "base/ref_counted.h"
 #include "base/scoped_ptr.h"
 #include "chrome/browser/browser_process_sub_thread.h"
 #include "chrome/browser/net/chrome_network_delegate.h"
 #include "chrome/common/net/predictor_common.h"
 #include "net/base/network_change_notifier.h"
 
 class ChromeNetLog;
 class ChromeURLRequestContextGetter;
 class ListValue;
+class PrefProxyConfigTracker;
 class PrefService;
+class SystemURLRequestContextGetter;
+class URLRequestContextGetter;
 
 namespace chrome_browser_net {
 class ConnectInterceptor;
 class Predictor;
 }  // namespace chrome_browser_net
 
 namespace net {
 class CertVerifier;
 class DnsRRResolver;
 class HostResolver;
 class HttpAuthHandlerFactory;
 class HttpTransactionFactory;
+class ProxyConfigService;
 class ProxyScriptFetcher;
 class ProxyService;
 class SSLConfigService;
 class URLRequestContext;
 class URLSecurityManager;
 }  // namespace net
 
 class IOThread : public BrowserProcessSubThread {
  public:
   struct Globals {
     Globals();
     ~Globals();
 
     scoped_ptr<net::HostResolver> host_resolver;
     scoped_ptr<net::CertVerifier> cert_verifier;
     scoped_ptr<net::DnsRRResolver> dnsrr_resolver;
     scoped_refptr<net::SSLConfigService> ssl_config_service;
     scoped_ptr<net::HttpAuthHandlerFactory> http_auth_handler_factory;
     scoped_refptr<net::ProxyService> proxy_script_fetcher_proxy_service;
     scoped_ptr<net::HttpTransactionFactory>
         proxy_script_fetcher_http_transaction_factory;
     scoped_ptr<net::URLSecurityManager> url_security_manager;
     ChromeNetworkDelegate network_delegate;
     scoped_refptr<net::URLRequestContext> proxy_script_fetcher_context;
+    scoped_ptr<net::HttpTransactionFactory> system_http_transaction_factory;
+    scoped_refptr<net::ProxyService> system_proxy_service;
+    // NOTE(willchan): This request context is unusable until a system
+    // SSLConfigService is provided that doesn't rely on
+    // Profiles. Do NOT use this yet.
+    scoped_refptr<net::URLRequestContext> system_request_context;
   };
 
   // |net_log| must either outlive the IOThread or be NULL.
   IOThread(PrefService* local_state, ChromeNetLog* net_log);
 
   virtual ~IOThread();
 
   // Can only be called on the IO thread.
   Globals* globals();
 
   ChromeNetLog* net_log();
 
+  // Passes ownership of the |system_proxy_config_service| to be used by
+  // the |system_request_context| to the IO thread.
+  void SetSystemProxyConfigService(
+      net::ProxyConfigService* system_proxy_config_service);
+
   // Initializes the network predictor, which induces DNS pre-resolution and/or
   // TCP/IP preconnections.  |prefetching_enabled| indicates whether or not DNS
   // prefetching should be enabled, and |preconnect_enabled| controls whether
   // TCP/IP preconnection is enabled.  This should be called by the UI thread.
   // It will post a task to the IO thread to perform the actual initialization.
   void InitNetworkPredictor(bool prefetching_enabled,
                             base::TimeDelta max_dns_queue_delay,
                             size_t max_speculative_parallel_resolves,
                             const chrome_common_net::UrlList& startup_urls,
                             ListValue* referral_list,
@@ skipping 11 matching lines @@
 
   // Unregisters |url_request_context_getter| from the IO thread.  Only called
   // on the IO thread.
   void UnregisterURLRequestContextGetter(
       ChromeURLRequestContextGetter* url_request_context_getter);
 
   // Handles changing to On The Record mode.  Post a task for this onto the
   // IOThread's message loop.
   void ChangedToOnTheRecord();
 
+  // Returns a getter for the URLRequestContext.  Only called on the UI thread.
+  scoped_refptr<URLRequestContextGetter> system_url_request_context_getter();
+
   // Clears the host cache.  Intended to be used to prevent exposing recently
   // visited sites on about:net-internals/#dns and about:dns pages.  Must be
   // called on the IO thread.
   void ClearHostCache();
 
  protected:
   virtual void Init();
   virtual void CleanUp();
   virtual void CleanUpAfterMessageLoopDestruction();
 
  private:
+  friend class SystemURLRequestContextGetter;
+
   static void RegisterPrefs(PrefService* local_state);
 
   net::HttpAuthHandlerFactory* CreateDefaultAuthHandlerFactory(
       net::HostResolver* resolver);
 
+  // Lazy initialization of system request context for
+  // SystemURLRequestContextGetter. To be called on IO thread.
+  void InitSystemRequestContext();
+
   void InitNetworkPredictorOnIOThread(
       bool prefetching_enabled,
       base::TimeDelta max_dns_queue_delay,
       size_t max_speculative_parallel_resolves,
       const chrome_common_net::UrlList& startup_urls,
       ListValue* referral_list,
       bool preconnect_enabled);
 
   void ChangedToOnTheRecordOnIOThread();
 
@@ skipping 30 matching lines @@
   // these observers would be used accidentally after we have begun to tear
   // down.
   chrome_browser_net::ConnectInterceptor* speculative_interceptor_;
   chrome_browser_net::Predictor* predictor_;
 
   // Keeps track of all live ChromeURLRequestContextGetters, so the
   // ChromeURLRequestContexts can be released during
   // IOThread::CleanUpAfterMessageLoopDestruction().
   std::list<ChromeURLRequestContextGetter*> url_request_context_getters_;
 
+  scoped_refptr<URLRequestContextGetter> system_url_request_context_getter_;
+
+  scoped_ptr<net::ProxyConfigService> system_proxy_config_service_;
+
   DISALLOW_COPY_AND_ASSIGN(IOThread);
 };
 
 #endif  // CHROME_BROWSER_IO_THREAD_H_