[Cronet] Allow experimenting with Chrome's internal DNS resolver.

components/cronet/url_request_context_config.h

 // Copyright 2014 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 COMPONENTS_CRONET_URL_REQUEST_CONTEXT_CONFIG_H_
 #define COMPONENTS_CRONET_URL_REQUEST_CONTEXT_CONFIG_H_
 
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/scoped_vector.h"
 #include "base/time/time.h"
 #include "net/base/hash_value.h"
 
 namespace net {
 class CertVerifier;
+class NetLog;
 class URLRequestContextBuilder;
 }  // namespace net
 
 namespace cronet {
 
 // Common configuration parameters used by Cronet to configure
 // URLRequestContext.
 struct URLRequestContextConfig {
   // Type of HTTP cache.
   // GENERATED_JAVA_ENUM_PACKAGE: org.chromium.net
@@ skipping 69 matching lines @@
       // Fallback data reduction proxy.
       const std::string& data_reduction_fallback_proxy,
       // Data reduction proxy secure proxy check URL.
       const std::string& data_reduction_secure_proxy_check_url,
       // MockCertVerifier to use for testing purposes.
       scoped_ptr<net::CertVerifier> mock_cert_verifier);
   ~URLRequestContextConfig();
 
   // Configure |context_builder| based on |this|.
   void ConfigureURLRequestContextBuilder(
-      net::URLRequestContextBuilder* context_builder);
+      net::URLRequestContextBuilder* context_builder,
+      net::NetLog* net_log);
 
   // Enable QUIC.
   const bool enable_quic;
   // Enable SPDY.
   const bool enable_spdy;
   // Enable SDCH.
   const bool enable_sdch;
   // Type of http cache.
   const HttpCacheType http_cache;
   // Max size of http cache in bytes.
@@ skipping 27 matching lines @@
   // The list of public key pins.
   ScopedVector<Pkp> pkp_list;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(URLRequestContextConfig);
 };
 
 }  // namespace cronet
 
 #endif  // COMPONENTS_CRONET_URL_REQUEST_CONTEXT_CONFIG_H_