EDK: Make TransportData preserve handle rights.

mojo/edk/system/message_pipe_test_utils.h

 // Copyright 2014 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.
 
 #ifndef MOJO_EDK_SYSTEM_MESSAGE_PIPE_TEST_UTILS_H_
 #define MOJO_EDK_SYSTEM_MESSAGE_PIPE_TEST_UTILS_H_
 
 #include <memory>
 
 #include "mojo/edk/platform/scoped_platform_handle.h"
 #include "mojo/edk/system/channel.h"
+#include "mojo/edk/system/handle_signals_state.h"
 #include "mojo/edk/system/test/test_io_thread.h"
 #include "mojo/edk/test/multiprocess_test_helper.h"
 #include "mojo/edk/util/ref_ptr.h"
 #include "mojo/public/cpp/system/macros.h"
 
 namespace mojo {
 
 namespace embedder {
 class PlatformSupport;
 }
@@ skipping 51 matching lines @@
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(MultiprocessMessagePipeTestBase);
 };
 #endif
 
 }  // namespace test
 }  // namespace system
 }  // namespace mojo
 
 #endif  // MOJO_EDK_SYSTEM_MESSAGE_PIPE_TEST_UTILS_H_