Remove mojo/tools/, not needed in chromium

mojo/tools/message_generator.cc

-// 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.
-
-#include "base/files/file_path.h"
-#include "base/files/file_util.h"
-#include "base/strings/string_util.h"
-#include "base/strings/stringprintf.h"
-#include "mojo/public/cpp/bindings/lib/message_builder.h"
-#include "mojo/public/cpp/bindings/lib/message_internal.h"
-#include "mojo/public/cpp/bindings/message.h"
-
-// This file is used to generate various files corresponding to mojo
-// messages. The various binding implementations can parse these to verify they
-// correctly decode messages.
-//
-// The output consists of each byte of the message encoded in a hex string with
-// a newline after it.
-namespace mojo {
-namespace {
-
-std::string BinaryToHex(const base::StringPiece& piece) {
-  std::string result("// File generated by mojo_message_generator.\n");;
-  result.reserve(result.size() + (piece.size() * 5));
-  for (size_t i = 0; i < piece.size(); ++i)
-    base::StringAppendF(&result, "0X%.2X\n", static_cast<int>(piece.data()[i]));
-  return result;
-}
-
-void WriteMessageToFile(const Message& message, const base::FilePath& path) {
-  const std::string hex_message(BinaryToHex(
-      base::StringPiece(reinterpret_cast<const char*>(message.data()),
-                        message.data_num_bytes())));
-  CHECK_EQ(static_cast<int>(hex_message.size()),
-           base::WriteFile(path, hex_message.data(),
-                           static_cast<int>(hex_message.size())));
-}
-
-// Generates a message of type MessageData. The message uses the name 21,
-// with 4 bytes of payload: 0x9, 0x8, 0x7, 0x6.
-void GenerateMessageDataMessage() {
-  internal::MessageBuilder builder(static_cast<uint32_t>(21),
-                                   static_cast<size_t>(4));
-  char* data = static_cast<char*>(builder.buffer()->Allocate(4));
-  DCHECK(data);
-  data[0] = 9;
-  data[1] = 8;
-  data[2] = 7;
-  data[3] = 6;
-
-  Message message;
-  builder.Finish(&message);
-  WriteMessageToFile(message,
-                     base::FilePath(FILE_PATH_LITERAL("message_data")));
-}
-
-}  // namespace
-}  // namespace mojo
-
-int main(int argc, char** argv) {
-  mojo::GenerateMessageDataMessage();
-  return 0;
-}