Revert 65245 - Merge 65225 - Crash fix: HTTPS server responds with 407 throug...

net/http/http_network_transaction.cc

Index: net/http/http_network_transaction.cc
===================================================================
--- net/http/http_network_transaction.cc	(revision 65257)
+++ net/http/http_network_transaction.cc	(working copy)
@@ -1183,11 +1183,6 @@
   if (target == HttpAuth::AUTH_PROXY && proxy_info_.is_direct())
     return ERR_UNEXPECTED_PROXY_AUTH;
 
-  // This case can trigger when an HTTPS server responds with a 407 status
-  // code through a non-authenticating proxy.
-  if (!auth_controllers_[target].get())
-    return ERR_UNEXPECTED_PROXY_AUTH;
-
   int rv = auth_controllers_[target]->HandleAuthChallenge(
       headers, (request_->load_flags & LOAD_DO_NOT_SEND_AUTH_DATA) != 0, false,
       net_log_);