DevTools: Add support for installing node and running eslint over devtools.

testing/scripts/run_devtools_closure_compile.py

-#!/usr/bin/env python
-# 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.
-
-"""Runs a python script under an isolate
-
-This script attempts to emulate the contract of gtest-style tests
-invoked via recipes. The main contract is that the caller passes the
-argument:
-
-  --isolated-script-test-output=[FILENAME]
-
-json is written to that file in the format produced by
-common.parse_common_test_results.
-
-This script is intended to be the base command invoked by the isolate,
-followed by a subsequent Python script."""
-
-import argparse
-import json
-import os
-import sys
-
-
-import common
-
-# Add src/testing/ into sys.path for importing xvfb.
-sys.path.append(os.path.join(os.path.dirname(__file__), '..'))
-import xvfb
-
-
-def main():
-  parser = argparse.ArgumentParser()
-  parser.add_argument('--isolated-script-test-output', type=str,
-                      required=True)
-  args, rest_args = parser.parse_known_args()
-  # Remove the chartjson extra arg until this script cares about chartjson
-  # results
-  index = 0
-  for arg in rest_args:
-    if '--isolated-script-test-chartjson-output' in arg:
-      rest_args.pop(index)
-      break
-    index += 1
-
-  ret = common.run_command([sys.executable] + rest_args)
-  with open(args.isolated_script_test_output, 'w') as fp:
-    json.dump({'valid': True,
-               'failures': ['failed'] if ret else []}, fp)
-  return ret
-
-def main_compile_targets(args):
-  json.dump(['devtools_closure_compile'], args.output)
-
-
-if __name__ == '__main__':
-  # Conform minimally to the protocol defined by ScriptTest.
-  if 'compile_targets' in sys.argv:
-    funcs = {
-      'run': None,
-      'compile_targets': main_compile_targets,
-    }
-    sys.exit(common.run_script(sys.argv[1:], funcs))
-  sys.exit(main())