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      1 // Copyright 2014 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "mojo/embedder/platform_handle_utils.h"
      6 
      7 #include <unistd.h>
      8 
      9 #include "base/logging.h"
     10 
     11 namespace mojo {
     12 namespace embedder {
     13 
     14 ScopedPlatformHandle DuplicatePlatformHandle(PlatformHandle platform_handle) {
     15   DCHECK(platform_handle.is_valid());
     16   // Note that |dup()| returns -1 on error (which is exactly the value we use
     17   // for invalid |PlatformHandle| FDs).
     18   return ScopedPlatformHandle(PlatformHandle(dup(platform_handle.fd)));
     19 }
     20 
     21 }  // namespace embedder
     22 }  // namespace mojo
     23