Extended: Add "system" URLRequestContext

chrome/browser/intranet_redirect_detector.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_INTRANET_REDIRECT_DETECTOR_H_
 #define CHROME_BROWSER_INTRANET_REDIRECT_DETECTOR_H_
 #pragma once
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "chrome/common/net/url_fetcher.h"
-#include "chrome/common/notification_observer.h"
-#include "chrome/common/notification_registrar.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/host_resolver_proc.h"
 #include "net/base/network_change_notifier.h"
 
 class PrefService;
 
 // This object is responsible for determining whether the user is on a network
 // that redirects requests for intranet hostnames to another site, and if so,
 // tracking what that site is (including across restarts via a pref).  For
 // example, the user's ISP might convert a request for "http://query/" into a
 // 302 redirect to "http://isp.domain.com/search?q=query" in order to display
 // custom pages on typos, nonexistent sites, etc.
 //
 // We use this information in the AlternateNavURLFetcher to avoid displaying
 // infobars for these cases.  Our infobars are designed to allow users to get at
 // intranet sites when they were erroneously taken to a search result page.  In
 // these cases, however, users would be shown a confusing and useless infobar
 // when they really did mean to do a search.
 //
 // Consumers should call RedirectOrigin(), which is guaranteed to synchronously
 // return a value at all times (even during startup or in unittest mode).  If no
 // redirection is in place, the returned GURL will be empty.
 class IntranetRedirectDetector
     : public URLFetcher::Delegate,
-      public NotificationObserver,
       public net::NetworkChangeNotifier::IPAddressObserver {
  public:
   // Only the main browser process loop should call this, when setting up
   // g_browser_process->intranet_redirect_detector_.  No code other than the
   // IntranetRedirectDetector itself should actually use
   // g_browser_process->intranet_redirect_detector() (which shouldn't be hard,
   // since there aren't useful public functions on this object for consumers to
   // access anyway).
   IntranetRedirectDetector();
   ~IntranetRedirectDetector();
 
   // Returns the current redirect origin.  This will be empty if no redirection
   // is in place.
   static GURL RedirectOrigin();
 
   static void RegisterPrefs(PrefService* prefs);
 
   // The number of characters the fetcher will use for its randomly-generated
   // hostnames.
   static const size_t kNumCharsInHostnames;
 
  private:
   typedef std::set<URLFetcher*> Fetchers;
 
   // Called when the seven second startup sleep or the one second network
   // switch sleep has finished.  Runs any pending fetch.
   void FinishSleep();
 
-  // Starts the fetches to determine the redirect URL if we can currently do so.
-  void StartFetchesIfPossible();
-
   // URLFetcher::Delegate
   virtual void OnURLFetchComplete(const URLFetcher* source,
                                   const GURL& url,
                                   const net::URLRequestStatus& status,
                                   int response_code,
                                   const ResponseCookies& cookies,
                                   const std::string& data);
 
-  // NotificationObserver
-  virtual void Observe(NotificationType type,
-                       const NotificationSource& source,
-                       const NotificationDetails& details);
-
   // NetworkChangeNotifier::IPAddressObserver
   virtual void OnIPAddressChanged();
 
-  NotificationRegistrar registrar_;
   GURL redirect_origin_;
   ScopedRunnableMethodFactory<IntranetRedirectDetector> fetcher_factory_;
   Fetchers fetchers_;
   std::vector<GURL> resulting_origins_;
   bool in_sleep_;  // True if we're in the seven-second "no fetching" period
                    // that begins at browser start, or the one-second "no
                    // fetching" period that begins after network switches.
-  bool request_context_available_;
-                           // True when the profile has been loaded and the
-                           // default request context created, so we can
-                           // actually do the fetch with the right data.
 
   DISALLOW_COPY_AND_ASSIGN(IntranetRedirectDetector);
 };
 
 // This is for use in testing, where we don't want our fetches to actually go
 // over the network.  It captures the requests and causes them to fail.
 class IntranetRedirectHostResolverProc : public net::HostResolverProc {
  public:
   explicit IntranetRedirectHostResolverProc(net::HostResolverProc* previous);
 
   virtual int Resolve(const std::string& host,
                       net::AddressFamily address_family,
                       net::HostResolverFlags host_resolver_flags,
                       net::AddressList* addrlist,
                       int* os_error);
 };
 
 #endif  // CHROME_BROWSER_INTRANET_REDIRECT_DETECTOR_H_