Receiving Connection: Proxy-Bypass induces proxy fallback.

net/proxy/proxy_list.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.
 
 #ifndef NET_PROXY_PROXY_LIST_H_
 #define NET_PROXY_PROXY_LIST_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 17 matching lines @@
   // delimited by a semicolon.
   void Set(const std::string& proxy_uri_list);
 
   // Set the proxy list to a single entry, |proxy_server|.
   void SetSingleProxyServer(const ProxyServer& proxy_server);
 
   // De-prioritizes the proxies that we have cached as not working, by moving
   // them to the end of the fallback list.
   void DeprioritizeBadProxies(const ProxyRetryInfoMap& proxy_retry_info);
 
+  // Returns true if this proxy list contains at least one proxy that is
+  // not currently present in |proxy_retry_info|.
+  bool HasUntriedProxies(const ProxyRetryInfoMap& proxy_retry_info) const;
+
   // Delete any entry which doesn't have one of the specified proxy schemes.
   // |scheme_bit_field| is a bunch of ProxyServer::Scheme bitwise ORed together.
   void RemoveProxiesWithoutScheme(int scheme_bit_field);
 
   // Clear the proxy list.
   void Clear();
 
   // Returns true if there is nothing left in the ProxyList.
   bool IsEmpty() const;
 
@@ skipping 15 matching lines @@
   // Returns a PAC-style semicolon-separated list of valid proxy servers.
   // For example: "PROXY xxx.xxx.xxx.xxx:xx; SOCKS yyy.yyy.yyy:yy".
   std::string ToPacString() const;
 
   // Marks the current proxy server as bad and deletes it from the list.  The
   // list of known bad proxies is given by proxy_retry_info.  Returns true if
   // there is another server available in the list.
   bool Fallback(ProxyRetryInfoMap* proxy_retry_info,
                 const BoundNetLog& net_log);
 
+  // Updates |proxy_retry_info| to indicate that the first proxy in the list
+  // is bad. This is distinct from Fallback(), above, to allow updating proxy
+  // retry information without modifying a given transction's proxy list.
+  void UpdateRetryInfoOnFallback(ProxyRetryInfoMap* proxy_retry_info,
+                                 const BoundNetLog& net_log) const;
+
  private:
   // List of proxies.
   std::vector<ProxyServer> proxies_;
 };
 
 }  // namespace net
 
 #endif  // NET_PROXY_PROXY_LIST_H_