Fix PPB_Audio_Proxy handling of file descriptors.

ppapi/proxy/ppb_audio_proxy.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 "ppapi/proxy/ppb_audio_proxy.h"
 
 #include "base/threading/simple_thread.h"
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/ppb_audio.h"
 #include "ppapi/c/trusted/ppb_audio_trusted.h"
@@ skipping 264 matching lines @@
   // On Windows, duplicate the socket into the plugin process, this will
   // automatically close the source handle.
   ::DuplicateHandle(
       GetCurrentProcess(),
       reinterpret_cast<HANDLE>(static_cast<intptr_t>(socket_handle)),
       dispatcher()->remote_process_handle(), foreign_socket_handle,
       STANDARD_RIGHTS_REQUIRED | FILE_MAP_READ | FILE_MAP_WRITE,
       FALSE, DUPLICATE_CLOSE_SOURCE);
 #else
   // On Posix, the socket handle will be auto-duplicated when we send the
-  // FileDescriptor. Set AutoClose since we don't need the handle any more.
-  *foreign_socket_handle = base::FileDescriptor(socket_handle, true);
+  // FileDescriptor. Don't set AutoClose since this is not our handle.
+  *foreign_socket_handle = base::FileDescriptor(socket_handle, false);
 #endif
 
   // Get the shared memory for the buffer.
   // TODO(brettw) remove the reinterpret cast when the interface is updated.
   int shared_memory_handle;
   result = audio_trusted->GetSharedMemory(resource.host_resource(),
                                           &shared_memory_handle,
                                           shared_memory_length);
   if (result != PP_OK)
     return result;
@@ skipping 10 matching lines @@
   // close the source handle.
   if (!shared_memory.GiveToProcess(dispatcher()->remote_process_handle(),
                                    foreign_shared_memory_handle))
     return PP_ERROR_FAILED;
 
   return PP_OK;
 }
 
 }  // namespace proxy
 }  // namespace pp