[Downloads] Do not store error responses during resumption.

content/browser/download/download_interrupt_reasons_impl.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 "content/browser/download/download_interrupt_reasons_impl.h"
 
 #include "base/logging.h"
 
 namespace content {
 
@@ skipping 66 matching lines @@
     case net::ERR_BLOCKED_BY_CLIENT:
       return DOWNLOAD_INTERRUPT_REASON_FILE_BLOCKED;
 
     // Network errors.
 
     // The network operation timed out.
     case net::ERR_TIMED_OUT:
       return DOWNLOAD_INTERRUPT_REASON_NETWORK_TIMEOUT;
 
     // The network connection has been lost.
+    case net::ERR_NETWORK_CHANGED:

[svaldez, 2016/01/13 17:29:18]

Might want to split this out to a separate CL if this actually affects other
codepaths. Otherwise its probably fine here.

[asanka, 2016/01/28 02:24:17]

Makes sense. Done.

     case net::ERR_INTERNET_DISCONNECTED:
       return DOWNLOAD_INTERRUPT_REASON_NETWORK_DISCONNECTED;
 
     // The server has gone down.
     case net::ERR_CONNECTION_FAILED:
       return DOWNLOAD_INTERRUPT_REASON_NETWORK_SERVER_DOWN;
 
     // Server responses.
 
     // The server does not support range requests.
@@ skipping 33 matching lines @@
     default:
       break;
   }
 
 #undef INTERRUPT_REASON
 
   return "Unknown error";
 }
 
 }  // namespace content