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

third_party/bsdiff/bsdiff.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.
 
 {
-  'includes': [
-    '../../build/common.gypi',
-  ],
   'targets': [
     {
       'target_name': 'bsdiff',
       'type': 'executable',
       'msvs_guid': 'E1D0B89E-257B-4BCA-A0C6-A2CD997A2FDC',
       'dependencies': [
         '../bspatch/bspatch.gyp:bspatch',
       ],
       'link_settings': {
         'libraries': [
           '-lWs2_32.lib',
         ],
       },
       'sources': [
         'mbsdiff.cc',
       ],
     },
   ],
 }