Add Data Saver support to 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 11 matching lines @@
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "build/build_config.h"
 #include "net/base/net_export.h"
 #include "net/base/network_delegate.h"
 #include "net/dns/host_resolver.h"
 #include "net/proxy/proxy_config_service.h"
 #include "net/proxy/proxy_service.h"
 #include "net/quic/quic_protocol.h"
 #include "net/socket/next_proto.h"
+#include "net/url_request/url_request_interceptor.h"

[mmenke, 2015/03/10 15:26:55]

Suggest forward declaring this.  May have to de-inline and rename
set_interceptor to so.

[bengr, 2015/03/10 23:43:31]

Done.

 
 namespace net {
 
 class ChannelIDService;
 class CookieStore;
 class FtpTransactionFactory;
 class HostMappingRules;
 class HttpAuthHandlerFactory;
 class ProxyConfigService;
 class URLRequestContext;
@@ skipping 127 matching lines @@
   void set_quic_connection_options(
       const QuicTagVector& quic_connection_options) {
     http_network_session_params_.quic_connection_options =
         quic_connection_options;
   }
 
   void set_throttling_enabled(bool throttling_enabled) {
     throttling_enabled_ = throttling_enabled;
   }
 
+  void set_interceptor(scoped_ptr<URLRequestInterceptor> interceptor) {
+    url_request_interceptor_ = interceptor.Pass();

[mmenke, 2015/03/10 15:26:55]

We should probably allow an ordered list of interceptors to be set, like we do
in ProfileIOData.  A bit unfortunate that we need to expose quite that level of
access, but I think it's an inevitable change.

[bengr, 2015/03/10 23:43:31]

Done.

+  }
+
   // Override the default in-memory cookie store and channel id service.
   // |cookie_store| must not be NULL. |channel_id_service| may be NULL to
   // disable channel id for this context.
   // Note that a persistent cookie store should not be used with an in-memory
   // channel id service, and one cookie store should not be shared between
   // multiple channel-id stores (or used both with and without a channel id
   // store).
   void SetCookieAndChannelIdStores(
       const scoped_refptr<CookieStore>& cookie_store,
       scoped_ptr<ChannelIDService> channel_id_service);
@@ skipping 30 matching lines @@
   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_;
+  scoped_ptr<URLRequestInterceptor> url_request_interceptor_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestContextBuilder);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_CONTEXT_BUILDER_H_