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

build/linux/system.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' : {
-    'includes': [
-      '../common.gypi',
-    ],
-    'conditions': [
-      ['sysroot!=""', {
+  'conditions': [
+    ['sysroot!=""', {
+      'variables': {
         'pkg-config': './pkg-config-wrapper "<(sysroot)"',
-      }, {
+      },
+    }, {
+      'variables': {
         'pkg-config': 'pkg-config'
-      }],
-    ],
-  },
+      },
+    }],
+  ],
+  
   'targets': [
     {
       'target_name': 'gtk',
       'type': 'settings',
       'direct_dependent_settings': {
         'cflags': [
           '<!@(<(pkg-config) --cflags gtk+-2.0 gthread-2.0)',
         ],
       },
       'link_settings': {
@@ skipping 139 matching lines @@
 #         'ldflags': [
 #           '<!@(<(pkg-config) --libs-only-L --libs-only-other dbus-glib-1)',
 #         ],
 #         'libraries': [
 #           '<!@(<(pkg-config) --libs-only-l dbus-glib-1)',
 #         ],
 #       },
 #     },
   ],
 }