DevTools: use git cl format --js for PRESUBMIT check

third_party/WebKit/Source/devtools/scripts/format.js

-// Copyright 2016 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.
-
-var childProcess = require('child_process');
-var fs = require('fs');
-var path = require('path');
-
-var args = process.argv.slice(2);
-
-var CLANG_FORMAT_PATH = path.resolve(__dirname, 'clang_format', 'index.js');
-var IGNORE_FILE_PATH = path.resolve(__dirname, '..', '.eslintignore');
-
-var ignoreFile = fs.readFileSync(IGNORE_FILE_PATH, 'utf-8');
-var ignores = ignoreFile.split('\n').filter(str => str.length);
-var ignoreArg = '--ignore=' + ignores.join(',');
-
-console.log('Running clang-format');
-var clangArgs = ['-i', ignoreArg];
-if (args.length)
-  clangArgs = clangArgs.concat(args);
-else
-  clangArgs.push('--glob=+(scripts|front_end)/**/*.js');
-
-
-var options = {cwd: path.resolve(__dirname, '..')};
-
-childProcess.fork(CLANG_FORMAT_PATH, clangArgs, options);