Force inclusion of build/common.gypi for all chromium gyp files.

base/base.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,
   },
-  'includes': [
-    '../build/common.gypi',
-  ],
   'targets': [
     {
       'target_name': 'base',
       'type': '<(library)',
       'dependencies': [
         '../third_party/icu/icu.gyp:icui18n',
         '../third_party/icu/icu.gyp:icuuc',
       ],
       'msvs_guid': '1832A374-8A74-4F9E-B536-69A699B3E165',
       'sources': [
@@ skipping 851 matching lines @@
                 '<@(_outputs)',
               ],
               'message': 'Generating version information',
             },
           ],
         },
       ],
     }],
   ],
 }