Remove the implicit fallback to DIRECT when proxies fail. This better matches...

net/proxy/proxy_service.h

Index: net/proxy/proxy_service.h
===================================================================
--- net/proxy/proxy_service.h	(revision 35522)
+++ net/proxy/proxy_service.h	(working copy)
@@ -222,12 +222,6 @@
   // Removes |req| from the list of pending requests.
   void RemovePendingRequest(PacRequest* req);
 
-  // Called to indicate that a PacRequest completed.  The |config_id| parameter
-  // indicates the proxy configuration that was queried.  |result_code| is OK
-  // if the PAC file could be downloaded and executed.  Otherwise, it is an
-  // error code, indicating a bad proxy configuration.
-  void DidCompletePacRequest(int config_id, int result_code);
-
   // Returns true if the URL passed in should not go through the proxy server.
   // 1. If the proxy settings say to bypass local names, and |IsLocalName(url)|.
   // 2. The URL matches one of the entities in the proxy bypass list.
@@ -253,9 +247,6 @@
   // Increasing ID to give to the next ProxyConfig that we set.
   int next_config_id_;
 
-  // Indicates that the configuration is bad and should be ignored.
-  bool config_is_bad_;
-
   // Indicates whether the ProxyResolver should be sent requests.
   bool should_use_proxy_resolver_;