Switch to standard integer types in base/memory/.

base/memory/shared_memory_handle_mac.cc

 // 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.
 
 #include "base/memory/shared_memory_handle.h"
 
 #include <mach/mach_vm.h>
+#include <stddef.h>
 #include <sys/mman.h>
 #include <unistd.h>
 
 #include "base/mac/mac_util.h"
 #include "base/posix/eintr_wrapper.h"
 
 namespace base {
 
 static_assert(sizeof(SharedMemoryHandle::Type) <=
                   sizeof(SharedMemoryHandle::TypeWireFormat),
@@ skipping 214 matching lines @@
     case MACH:
       memory_object_ = handle.memory_object_;
       size_ = handle.size_;
       pid_ = handle.pid_;
       ownership_passes_to_ipc_ = handle.ownership_passes_to_ipc_;
       break;
   }
 }
 
 }  // namespace base