Update ios/chrome/browser/web/resources/PRESUBMIT.py formatted JS check.

Update the presubmit check to use clang-format instead of gjslint
which is deprecated.

Bug: None
Cq-Include-Trybots: luci.chromium.try:ios-simulator-cronet;luci.chromium.try:ios-simulator-full-configs
Change-Id: I13b58f6d3c72a67fc58ee52c351a196b68953742
Reviewed-on: https://chromium-review.googlesource.com/c/1261720
Commit-Queue: Olivier Robin <olivierrobin@chromium.org>
Reviewed-by: Mike Dougherty <michaeldo@chromium.org>
Reviewed-by: Eugene But <eugenebut@chromium.org>
Cr-Commit-Position: refs/heads/master@{#596761}

ios/chrome/browser/web/resources/PRESUBMIT.py

@@ -2,85 +2,9 @@
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-"""Makes sure that injected JavaScript is gjslint clean."""
-
-# Regular expression patterns for JavaScript source files.
-INCLUDE_JS_FILES_ONLY = (
-  r'.*\.js$',
-)
-
-# List of standard locations where gjslint may be installed.
-GJSLINT_PATHS = (
-  '/usr/local/bin/gjslint',
-  '/usr/bin/gjslint',
-)
-
-def CheckChangeJsLintsClean(input_api, output_api):
-  """Checks for JavaScript lint errors."""
-  # Gets the list of modified files.
-  source_file_filter = lambda x: input_api.FilterSourceFile(
-      x, white_list=INCLUDE_JS_FILES_ONLY)
-  files = [f.AbsoluteLocalPath()
-      for f in input_api.AffectedSourceFiles(source_file_filter)]
-  results = []
-
-  # Run gjslint only if there are JavaScript files changed.
-  if files:
-    # Finds out where gjslint is installed, and warns user
-    # gently about this missing utility. Then treats it as
-    # if there are no JavaScript lint errors.
-    gjslint_path = None
-    for path in GJSLINT_PATHS:
-      if input_api.os_path.exists(path):
-        gjslint_path = path
-        break
-
-    if not gjslint_path:
-      # Early return if gjslint is not available.
-      return [ output_api.PresubmitNotifyResult(
-          '** WARNING ** gjslint is not installed in your environment.',
-          GJSLINT_PATHS,
-          ('Please see http://code.google.com/'
-           'closure/utilities/docs/linter_howto.html '
-           'for installation instructions.\n'
-           'You are strongly encouraged to install gjslint '
-           'because a kitten dies every time you submit code '
-           'without gjslint :)')) ]
-
-    # Found gjslint, run it over modified JavaScript files.
-    for file_name in files:
-      lint_error = RunJsLint(input_api, output_api, gjslint_path, file_name)
-      if lint_error is not None:
-        results.append(lint_error)
-
-  return results
-
-def RunJsLint(input_api, output_api, gjslint_path, file_name):
-  """Runs gjslint on a file.
-
-  Returns: None if there are no lint errors, or an object of type
-  output_api.Presubmit{Error,PromptWarning} if lint errors are found.
-  """
-  # Do not hinder users from uploading incomplete patches.
-  if input_api.is_committing:
-    message_type = output_api.PresubmitError
-  else:
-    message_type = output_api.PresubmitPromptWarning
-
-  result = None
-  cmd = [ gjslint_path, file_name ];
-  try:
-    if input_api.verbose:
-      input_api.subprocess.check_call(cmd, cwd=input_api.PresubmitLocalPath())
-    else:
-      input_api.subprocess.check_output(
-          cmd,
-          stderr=input_api.subprocess.STDOUT,
-          cwd=input_api.PresubmitLocalPath())
-  except (OSError, input_api.subprocess.CalledProcessError), e:
-    result = message_type('%s failed.\n%s' % (' '.join(cmd), e))
-  return result
+"""Makes sure that injected JavaScript is clang-format clean."""
 
 def CheckChangeOnUpload(input_api, output_api):
   """Special Top level function called by git_cl."""
-  return CheckChangeJsLintsClean(input_api, output_api)
+  return input_api.canned_checks.CheckPatchFormatted(
+      input_api, output_api, check_js=True)