ProxyConfigService for Linux....

net/proxy/proxy_config.h

 // Copyright (c) 2006-2008 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 NET_PROXY_PROXY_CONFIG_H_
 #define NET_PROXY_PROXY_CONFIG_H_
 
 #include <ostream>
 #include <string>
 #include <vector>
@@ skipping 89 matching lines @@
   // Returns true if the given config is equivalent to this config.
   bool Equals(const ProxyConfig& other) const;
 
  private:
   static int last_id_;
   int id_;
 };
 
 }  // namespace net
 
-// Dump a human-readable string representation of the configuration to |out|;
+// Dumps a human-readable string representation of the configuration to |out|;
 // used when logging the configuration changes.
 std::ostream& operator<<(std::ostream& out, const net::ProxyConfig& config);
 
+// Dumps a human-readable string representation of the |rules| to |out|;
+// used for logging and for better unittest failure output.
+std::ostream& operator<<(std::ostream& out,
+                         const net::ProxyConfig::ProxyRules& rules);
+
 #endif  // NET_PROXY_PROXY_CONFIG_H_