new_contents: # Copyright (c) 2010 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.
  
  """Notify people of GRD changes."""
  
  GRD_FILE_ENDING = 'resources.grd'
  
  def CheckChangeOnCommit(input_api, output_api):
    results = []
    for f in input_api.AffectedFiles():
      if f.LocalPath().endswith(GRD_FILE_ENDING):
        results = [ output_api.PresubmitPromptWarning('Your CL includes a GRD '
            'change. Please notify the sheriff BEFORE landing.\nSee this page '
            'for more information:\n  '
            'http://dev.chromium.org/developers/tree-sheriffs/sheriff-details-'
            'chromium') ]
        break
    return results
  
subject: Add a PRESUBMIT check in chrome/app/ for detecting GRD changes.