Initial implementation of Cronet Async API.

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/json/json_value_converter.h"
@@ skipping 25 matching lines @@
     // Alternate protocol port.
     int alternate_port;
 
    private:
     DISALLOW_COPY_AND_ASSIGN(QuicHint);
   };
 
   URLRequestContextConfig();
   ~URLRequestContextConfig();
 
+  // Load config values from JSON format.
+  bool LoadFromJSON(const std::string& config_string);
+
   // Configure |context_builder| based on |this|.
   void ConfigureURLRequestContextBuilder(
       net::URLRequestContextBuilder* context_builder);
 
   // Register |converter| for use in converter.Convert().
   static void RegisterJSONConverter(
       base::JSONValueConverter<URLRequestContextConfig>* converter);
 
   // Enable QUIC.
   bool enable_quic;
   // Enable SPDY.
   bool enable_spdy;
   // Type of http cache: "HTTP_CACHE_DISABLED", "HTTP_CACHE_DISK" or
   // "HTTP_CACHE_IN_MEMORY".
   std::string http_cache;
   // Max size of http cache in bytes.
   int http_cache_max_size;
   // Storage path for http cache and cookie storage.
   std::string storage_path;
+  // User-Agent request header field.
+  std::string user_agent;
   // App-provided list of servers that support QUIC.
   ScopedVector<QuicHint> quic_hints;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(URLRequestContextConfig);
 };
 
 }  // namespace cronet
 
 #endif  // COMPONENTS_CRONET_URL_REQUEST_CONTEXT_CONFIG_H_