Clean up dependencies on X11 libraries

chrome/chrome_tests.gypi

 # Copyright 2013 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' : {
     'chromedriver_unittest_sources': [
       'test/chromedriver/capabilities_unittest.cc',
       'test/chromedriver/chrome/chrome_finder_unittest.cc',
       'test/chromedriver/chrome/console_logger_unittest.cc',
       'test/chromedriver/chrome/device_manager_unittest.cc',
@@ skipping 782 matching lines @@
                       '<(SHARED_INTERMEDIATE_DIR)/chrome/test/chromedriver',
           ],
           'message': 'Generating version info',
         },
       ],
       'direct_dependent_settings': {
         'include_dirs': [
           '<(SHARED_INTERMEDIATE_DIR)',
         ],
       },
+      'conditions': [
+        ['use_x11==1', {
+          'dependencies': [
+            '../build/linux/system.gyp:x11',
+          ]
+        }]
+      ],
       # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
       'msvs_disabled_warnings': [ 4267, ],
     },
     {
       'target_name': 'chromedriver',
       'type': 'executable',
       'dependencies': [
         'chromedriver_lib',
       ],
       'include_dirs': [
@@ skipping 2395 matching lines @@
             'utility',
           ],
           'sources': [
             'tools/service_discovery_sniffer/service_discovery_sniffer.h',
             'tools/service_discovery_sniffer/service_discovery_sniffer.cc',
           ],
         }]
     }],
   ],  # 'conditions'
 }