Don't call NPP_StreamAsFile on the plugin, if the stream is being closed due ...

webkit/glue/plugins/plugin_stream.cc

 // Copyright (c) 2006-2008 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.
 
 // TODO : Support NP_ASFILEONLY mode
 // TODO : Support NP_SEEK mode
 // TODO : Support SEEKABLE=true in NewStream
 
 #include "config.h"
 
@@ skipping 210 matching lines @@
       } else {
         // Stop any pending data from being streamed
         delivery_data_.resize(0);
       }
     }
 
     // If we have a temp file, be sure to close it.
     // Also, allow the plugin to access it now.
     if (TempFileIsValid()) {
       CloseTempFile();
-      WriteAsFile();
+      if (reason == NPRES_DONE)
+        WriteAsFile();
     }
 
     if (stream_.ndata != NULL) {
       // Stream hasn't been closed yet.
       NPError err = instance_->NPP_DestroyStream(&stream_, reason);
       DCHECK(err == NPERR_NO_ERROR);
     }
   }
 
   Notify(reason);
   return true;
 }
 
 void PluginStream::Notify(NPReason reason) {
   if (notify_needed_) {
     instance_->NPP_URLNotify(stream_.url, reason, notify_data_);
     notify_needed_ = false;
   }
 }
 
 }  // namespace NPAPI