Switch to standard integer types in mojo/.

mojo/edk/system/broker.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_EDK_SYSTEM_BROKER_H_
 #define MOJO_EDK_SYSTEM_BROKER_H_
 
+#include <stddef.h>
 #include <stdint.h>
 
 #include "mojo/edk/embedder/scoped_platform_handle.h"
 
 namespace mojo {
 namespace edk {
 class MessagePipeDispatcher;
 class RawChannel;
 
 // An interface for communicating to a central "broker" process from each
@@ skipping 40 matching lines @@
   // It's ok to call this from a callback (i.e. from OnError or
   // GotNonTransferableChannel).
   virtual void CloseMessagePipe(uint64_t pipe_id,
                                 MessagePipeDispatcher* message_pipe) = 0;
 };
 
 }  // namespace edk
 }  // namespace mojo
 
 #endif  // MOJO_EDK_SYSTEM_BROKER_H_