Revert of Revert of linux/gyp: Find missing symbols at build time, not runtime.

ui/display/display.gyp

 # Copyright 2014 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 97 matching lines @@
         'util/display_util.h',
         'util/display_util_export.h',
         'util/edid_parser.cc',
         'util/edid_parser.h',
         'util/x11/edid_parser_x11.cc',
         'util/x11/edid_parser_x11.h',
       ],
       'conditions': [
         ['use_x11 == 1', {
           'dependencies': [
+            '../../build/linux/system.gyp:x11',
             '../../build/linux/system.gyp:xrandr',
             '../../ui/gfx/x/gfx_x11.gyp:gfx_x11',
           ],
         }],
         ['chromeos == 1', {
           'dependencies': [
             'display_types',
           ],
         }],
       ],
@@ skipping 71 matching lines @@
             'display',
             'display_test_support',
             'display_test_util',
             'display_types',
           ],
         }],
       ],
     },
   ],
 }