Enable Sdch in Cronet

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
@@ skipping 123 matching lines @@
     host_resolver_.reset(host_resolver);
   }
 
   // Uses BasicNetworkDelegate by default. Note that calling Build will unset
   // any custom delegate in builder, so this must be called each time before
   // Build is called.
   void set_network_delegate(NetworkDelegate* delegate) {
     network_delegate_.reset(delegate);
   }
 
-
   // Adds additional auth handler factories to be used in addition to what is
   // provided in the default |HttpAuthHandlerRegistryFactory|. The auth |scheme|
   // and |factory| are provided. The builder takes ownership of the factory and
   // Build() must be called after this method.
   void add_http_auth_handler_factory(const std::string& scheme,
                                      net::HttpAuthHandlerFactory* factory) {
     extra_http_auth_handlers_.push_back(SchemeFactory(scheme, factory));
   }
 
   // By default HttpCache is enabled with a default constructed HttpCacheParams.
@@ skipping 34 matching lines @@
   // store).
   void SetCookieAndChannelIdStores(
       const scoped_refptr<CookieStore>& cookie_store,
       scoped_ptr<ChannelIDService> channel_id_service);
 
   // Sets the task runner used to perform file operations. If not set, one will
   // be created.
   void SetFileTaskRunner(
       const scoped_refptr<base::SingleThreadTaskRunner>& task_runner);
 
+  // Note that if SDCH is enabled without a policy object observing
+  // the SDCH manager and handling at least Get-Dictionary events, the
+  // result will be "Content-Encoding: sdch" advertisements, but no
+  // dictionaries fetches and no specific dictionaries advertised.
+  // SdchOwner in net/sdch/sdch_owner.h is a simple policy object.
+  void set_sdch_enabled(bool enable) { sdch_enabled_ = enable; }
+
   URLRequestContext* Build();
 
  private:
   struct NET_EXPORT SchemeFactory {
     SchemeFactory(const std::string& scheme,
                   net::HttpAuthHandlerFactory* factory);
     ~SchemeFactory();
 
     std::string scheme;
     net::HttpAuthHandlerFactory* factory;
   };
 
   std::string accept_language_;
   std::string user_agent_;
   // Include support for data:// requests.
   bool data_enabled_;
 #if !defined(DISABLE_FILE_SUPPORT)
   // Include support for file:// requests.
   bool file_enabled_;
 #endif
 #if !defined(DISABLE_FTP_SUPPORT)
   // Include support for ftp:// requests.
   bool ftp_enabled_;
 #endif
   bool http_cache_enabled_;
   bool throttling_enabled_;
+  bool sdch_enabled_;
 
   scoped_refptr<base::SingleThreadTaskRunner> file_task_runner_;
   HttpCacheParams http_cache_params_;
   HttpNetworkSessionParams http_network_session_params_;
   base::FilePath transport_security_persister_path_;
   scoped_ptr<NetLog> net_log_;
   scoped_ptr<HostResolver> host_resolver_;
   scoped_ptr<ChannelIDService> channel_id_service_;
   scoped_ptr<ProxyConfigService> proxy_config_service_;
   scoped_ptr<ProxyService> proxy_service_;
   scoped_ptr<NetworkDelegate> network_delegate_;
   scoped_refptr<CookieStore> cookie_store_;
   scoped_ptr<FtpTransactionFactory> ftp_transaction_factory_;
   std::vector<SchemeFactory> extra_http_auth_handlers_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestContextBuilder);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_CONTEXT_BUILDER_H_