Receiving Connection: Proxy-Bypass induces proxy fallback.

net/proxy/proxy_service.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_SERVICE_H_
 #define NET_PROXY_PROXY_SERVICE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 128 matching lines @@
   //
   // Returns ERR_FAILED if there is not another proxy config to try.
   //
   // Profiling information for the request is saved to |net_log| if non-NULL.
   int ReconsiderProxyAfterError(const GURL& url,
                                 ProxyInfo* results,
                                 const CompletionCallback& callback,
                                 PacRequest** pac_request,
                                 const BoundNetLog& net_log);
 
+  // Explicitly trigger proxy fallback for the given |results|. Returns true
+  // if there is at least one proxy remaining in the list after fallback and
+  // false otherwise.
+  bool Fallback(ProxyInfo* results, const BoundNetLog& net_log);
+
   // Called to report that the last proxy connection succeeded.  If |proxy_info|
   // has a non empty proxy_retry_info map, the proxies that have been tried (and
   // failed) for this request will be marked as bad.
   void ReportSuccess(const ProxyInfo& proxy_info);
 
   // Call this method with a non-null |pac_request| to cancel the PAC request.
   void CancelPacRequest(PacRequest* pac_request);
 
   // Returns the LoadState for this |pac_request| which must be non-NULL.
   LoadState GetLoadState(const PacRequest* pac_request) const;
@@ skipping 267 matching lines @@
 
   base::WaitableEvent event_;
   CompletionCallback callback_;
   ProxyInfo proxy_info_;
   int result_;
 };
 
 }  // namespace net
 
 #endif  // NET_PROXY_PROXY_SERVICE_H_