Honor 'sysroot' setting when running cups-config

printing/printing.gyp

 # Copyright (c) 2012 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,
   },
   'targets': [
     {
@@ skipping 255 matching lines @@
             'conditions': [
               ['OS=="mac"', {
                 'link_settings': {
                   'libraries': [
                     '$(SDKROOT)/usr/lib/libcups.dylib',
                   ]
                 },
               }, {
                 'link_settings': {
                   'libraries': [
-                    '<!@(python cups_config_helper.py --libs)',
+                    '<!@(python cups_config_helper.py --libs <(sysroot))',
                   ],
                 },
               }],
               ['os_bsd==1', {
                 'cflags': [
-                  '<!@(python cups_config_helper.py --cflags)',
+                  '<!@(python cups_config_helper.py --cflags <(sysroot))',
                 ],
               }],
             ],
           },
         }],
       ],
     },
   ],
   'conditions': [
     ['OS == "android"', {
@@ skipping 19 matching lines @@
           },
           'dependencies': [
             '../base/base.gyp:base_java',
           ],
           'includes': [ '../build/java.gypi'  ],
         }
       ]
     }],
   ]
 }