Reduce number of unnamed-type-template-args violations.

net/proxy/proxy_config.h

 // Copyright (c) 2011 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_
 #pragma once
 
 #include <string>
 
@@ skipping 92 matching lines @@
    private:
     // Returns one of {&proxy_for_http, &proxy_for_https, &proxy_for_ftp}
     // or NULL if it is a scheme that we don't have a mapping
     // for. Should only call this if the type is TYPE_PROXY_PER_SCHEME.
     ProxyServer* MapUrlSchemeToProxyNoFallback(const std::string& scheme);
   };
 
   typedef int ID;
 
   // Indicates an invalid proxy config.
-  enum { INVALID_ID = 0 };
+  static const ID kInvalidConfigID = 0;
 
   ProxyConfig();
   ProxyConfig(const ProxyConfig& config);
   ~ProxyConfig();
   ProxyConfig& operator=(const ProxyConfig& config);
 
   // Used to numerically identify this configuration.
   ID id() const { return id_; }
   void set_id(int id) { id_ = id; }
-  bool is_valid() const { return id_ != INVALID_ID; }
+  bool is_valid() const { return id_ != kInvalidConfigID; }
 
   // Returns true if the given config is equivalent to this config.
   bool Equals(const ProxyConfig& other) const;
 
   // Returns true if this config contains any "automatic" settings. See the
   // class description for what that means.
   bool HasAutomaticSettings() const;
 
   void ClearAutomaticSettings();
 
@@ skipping 72 matching lines @@
   ProxyRules proxy_rules_;
 
   int id_;
 };
 
 }  // namespace net
 
 
 
 #endif  // NET_PROXY_PROXY_CONFIG_H_