Introduce ERR_NETWORK_CHANGED and allow URLFetcher to automatically retry on that error.

net/spdy/spdy_network_transaction_spdy2_unittest.cc

 // 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.
 
 #include "net/http/http_network_transaction.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 151 matching lines @@
     void RunDefaultTest() {
       output_.rv = trans_->Start(&request_, callback.callback(), log_);
 
       // We expect an IO Pending or some sort of error.
       EXPECT_LT(output_.rv, 0);
       if (output_.rv != ERR_IO_PENDING)
         return;
 
       output_.rv = callback.WaitForResult();
       if (output_.rv != OK) {
-        session_->spdy_session_pool()->CloseCurrentSessions();
+        session_->spdy_session_pool()->CloseCurrentSessions(net::ERR_ABORTED);
         return;
       }
 
       // Verify responses.
       const HttpResponseInfo* response = trans_->GetResponseInfo();
       ASSERT_TRUE(response != NULL);
       ASSERT_TRUE(response->headers != NULL);
       EXPECT_EQ("HTTP/1.1 200 OK", response->headers->GetStatusLine());
       EXPECT_EQ(spdy_enabled_, response->was_fetched_via_spdy);
       if (test_type_ == SPDYNPN && spdy_enabled_) {
@@ skipping 5583 matching lines @@
   // And now we can allow everything else to run to completion.
   data.SetStop(10);
   data.Run();
   EXPECT_EQ(OK, callback2.WaitForResult());
   EXPECT_EQ(OK, callback3.WaitForResult());
 
   helper.VerifyDataConsumed();
 }
 
 }  // namespace net