Move initialization of ChromeURLRequestContexts to the IO thread.

chrome/browser/net/url_fetcher.h

 // Copyright (c) 2009 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 file contains URLFetcher, a wrapper around URLRequest that handles
 // low-level details like thread safety, ref counting, and incremental buffer
 // reading.  This is useful for callers who simply want to get the data from a
 // URL and don't care about all the nitty-gritty details.
 
 #ifndef CHROME_BROWSER_URL_FETCHER_H_
 #define CHROME_BROWSER_URL_FETCHER_H_
 
 #include "base/leak_tracker.h"
 #include "base/message_loop.h"
 #include "base/ref_counted.h"
 #include "chrome/browser/net/url_fetcher_protect.h"
 
 class GURL;
 typedef std::vector<std::string> ResponseCookies;
 class URLFetcher;
-class URLRequestContext;
+class URLRequestContextGetter;
 class URLRequestStatus;
 
 namespace net {
 class HttpResponseHeaders;
 }
 
 // To use this class, create an instance with the desired URL and a pointer to
 // the object to be notified when the URL has been loaded:
 //   URLFetcher* fetcher = new URLFetcher("http://www.google.com", this);
 //
@@ skipping 104 matching lines @@
 
   // Returns the current load flags.
   int load_flags() const;
 
   // Set extra headers on the request.  Must be called before the request
   // is started.
   void set_extra_request_headers(const std::string& extra_request_headers);
 
   // Set the URLRequestContext on the request.  Must be called before the
   // request is started.
-  void set_request_context(URLRequestContext* request_context);
+  void set_request_context(URLRequestContextGetter* request_context_getter);
 
   // Retrieve the response headers from the request.  Must only be called after
   // the OnURLFetchComplete callback has run.
   net::HttpResponseHeaders* response_headers() const;
 
   // Start the request.  After this is called, you may not change any other
   // settings.
   virtual void Start();
 
   // Return the URL that this fetcher is processing.
@@ skipping 19 matching lines @@
   static Factory* factory_;
 
   base::LeakTracker<URLFetcher> leak_tracker_;
 
   static bool g_interception_enabled;
 
   DISALLOW_EVIL_CONSTRUCTORS(URLFetcher);
 };
 
 #endif  // CHROME_BROWSER_URL_FETCHER_H_