Add comments setting emacs and vim tab width and expansion variables....

gears/gears.gyp

 # Copyright (c) 2009 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'conditions': [
     [ 'OS == "win"', {
       'targets': [
         {
           'target_name': 'gears',
           'type': 'none',
           'msvs_guid': 'D703D7A0-EDC1-4FE6-9E22-56154155B24E',
           'copies': [
             {
               'destination': '<(PRODUCT_DIR)',
               'files': [
                 'binaries/gears.dll',
                 'binaries/gears.pdb',
               ],
             },
           ],
         },
       ],
     }],
   ],
 }
+
+# Local Variables:
+# tab-width:2
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=2 shiftwidth=2: