Only support seeking file streams from the beginning of the file.

chrome/browser/extensions/api/messaging/native_process_launcher_win.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 "chrome/browser/extensions/api/messaging/native_process_launcher.h"
 
 #include <windows.h>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 152 matching lines @@
   bool stdin_connected = ConnectNamedPipe(stdin_pipe.Get(), NULL) ?
       TRUE : GetLastError() == ERROR_PIPE_CONNECTED;
   if (!stdout_connected || !stdin_connected) {
     cmd_process.Terminate(0, false);
     LOG(ERROR) << "Failed to connect IO pipes when starting "
                << command_line.GetProgram().MaybeAsASCII();
     return false;
   }
 
   *process = cmd_process.Pass();
-  *read_file = base::File(stdout_pipe.Take());
-  *write_file = base::File(stdin_pipe.Take());
+  *read_file = base::File::CreateForAsyncHandle(stdout_pipe.Take());
+  *write_file = base::File::CreateForAsyncHandle(stdin_pipe.Take());
 
   return true;
 }
 
 }  // namespace extensions