Rename mojo::TokenSerializer to mojo::Broker.

mojo/edk/system/token_serializer_messages_win.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_TOKEN_SERIALIZER_MESSAGES_WIN_H_
-#define MOJO_EDK_SYSTEM_TOKEN_SERIALIZER_MESSAGES_WIN_H_
-
-#include <stdint.h>
-
-#include "base/compiler_specific.h"
-
-namespace mojo {
-namespace edk {
-
-// This header defines the message format between ChildTokenSerializer and
-// ParentTokenSerializer.
-
-enum MessageId {
-  // The reply is two HANDLEs.
-  CREATE_PLATFORM_CHANNEL_PAIR = 0,
-  // The reply is tokens of the same count of passed in handles.
-  HANDLE_TO_TOKEN,
-  // The reply is handles of the same count of passed in tokens.
-  TOKEN_TO_HANDLE,
-};
-
-// Definitions of the raw bytes sent between ChildTokenSerializer and
-// ParentTokenSerializer.
-
-struct ALIGNAS(4) TokenSerializerMessage {
-  uint32_t size;
-  MessageId id;
-  // Data, if any, follows.
-  union {
-    HANDLE handles[1];  // If HANDLE_TO_TOKEN.
-    uint64_t tokens[1];  // If TOKEN_TO_HANDLE.
-  };
-};
-
-const int kTokenSerializerMessageHeaderSize =
-    sizeof(uint32_t) + sizeof(MessageId);
-
-}  // namespace edk
-}  // namespace mojo
-
-#endif  // MOJO_EDK_SYSTEM_TOKEN_SERIALIZER_MESSAGES_WIN_H_