Switch to standard integer types in mojo/.

mojo/public/cpp/bindings/lib/native_serialization.h

 // Copyright 2015 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_PUBLIC_CPP_BINDINGS_LIB_NATIVE_SERIALIZATION_H_
 #define MOJO_PUBLIC_CPP_BINDINGS_LIB_NATIVE_SERIALIZATION_H_
 
+#include <stddef.h>
 #include <stdint.h>
 
 #include <limits>
 
 #include "base/logging.h"
 #include "base/pickle.h"
 #include "ipc/ipc_param_traits.h"
 #include "mojo/public/cpp/bindings/lib/array_internal.h"
 #include "mojo/public/cpp/bindings/lib/bindings_internal.h"
 #include "mojo/public/cpp/bindings/lib/bindings_serialization.h"
@@ skipping 71 matching lines @@
   // Return the header to its original state.
   header->num_bytes += sizeof(ArrayHeader);
 
   return true;
 }
 
 }  // namespace internal
 }  // namespace mojo
 
 #endif  // MOJO_PUBLIC_CPP_BINDINGS_LIB_NATIVE_SERIALIZATION_H_