Fix Pepper File IO callbacks.

webkit/plugins/ppapi/ppb_flash_impl.cc

 // Copyright (c) 2011 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 "webkit/plugins/ppapi/ppb_flash_impl.h"
 
 #include <string.h>
 
 #include "base/file_path.h"
 #include "base/stringprintf.h"
@@ skipping 404 matching lines @@
       if (local_addr_out_)
         *local_addr_out_ = local_addr;
       if (remote_addr_out_)
         *remote_addr_out_ = remote_addr;
       rv = PP_OK;
     } else {
       rv = PP_ERROR_FAILED;
     }
   }
 
-  callback_->Run(rv);  // Will complete abortively if necessary.
-
-  // Wipe everything out for safety.
-  callback_ = NULL;
+  // Theoretically, the plugin should be allowed to try another |ConnectTcp()|
+  // from the callback.
+  scoped_refptr<TrackedCompletionCallback> callback;
+  callback.swap(callback_);
+  // Wipe everything else out for safety.
   socket_out_ = NULL;
   local_addr_out_ = NULL;
   remote_addr_out_ = NULL;
+
+  callback->Run(rv);  // Will complete abortively if necessary.
 }
 
 }  // namespace ppapi
 }  // namespace webkit