Revert 60739 (still leaks on ChromiumOS!) - Reland r59972: Eagerly set the IO...

net/url_request/url_request_context.h

 // Copyright (c) 2010 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 represents contextual information (cookies, cache, etc.)
 // that's useful when processing resource requests.
 // The class is reference-counted so that it can be cleaned up after any
 // requests that are using it have been completed.
 
 #ifndef NET_URL_REQUEST_URL_REQUEST_CONTEXT_H_
@@ skipping 86 matching lines @@
   // method to provide a UA string.
   virtual const std::string& GetUserAgent(const GURL& url) const;
 
   // In general, referrer_charset is not known when URLRequestContext is
   // constructed. So, we need a setter.
   const std::string& referrer_charset() const { return referrer_charset_; }
   void set_referrer_charset(const std::string& charset) {
     referrer_charset_ = charset;
   }
 
-  // Controls whether or not the URLRequestContext considers itself to be the
-  // "main" URLRequestContext.
-  bool is_main() const { return is_main_; }
-  void set_is_main(bool is_main) { is_main_ = is_main; }
-
  protected:
   friend class base::RefCountedThreadSafe<URLRequestContext>;
 
   virtual ~URLRequestContext();
 
   // The following members are expected to be initialized and owned by
   // subclasses.
   net::NetLog* net_log_;
   scoped_refptr<net::HostResolver> host_resolver_;
   scoped_refptr<net::ProxyService> proxy_service_;
   scoped_refptr<net::SSLConfigService> ssl_config_service_;
   net::HttpTransactionFactory* http_transaction_factory_;
   net::FtpTransactionFactory* ftp_transaction_factory_;
   net::HttpAuthHandlerFactory* http_auth_handler_factory_;
   net::HttpNetworkDelegate* network_delegate_;
   scoped_refptr<net::CookieStore> cookie_store_;
   net::CookiePolicy* cookie_policy_;
   scoped_refptr<net::TransportSecurityState> transport_security_state_;
   net::FtpAuthCache ftp_auth_cache_;
   std::string accept_language_;
   std::string accept_charset_;
   // The charset of the referrer where this request comes from. It's not
   // used in communication with a server but is used to construct a suggested
   // filename for file download.
   std::string referrer_charset_;
 
  private:
-  // Indicates whether or not this is the main URLRequestContext.
-  bool is_main_;
-
   DISALLOW_COPY_AND_ASSIGN(URLRequestContext);
 };
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_CONTEXT_H_