aura-x11: Add custom web cursor support.

ui/ui.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,
   },
   'includes': [
     'ui_resources.gypi',
@@ skipping 553 matching lines @@
             'gfx/platform_font_pango.cc',
           ],
         }],
         ['use_x11==1', {
           'all_dependent_settings': {
             'ldflags': [
               '-L<(PRODUCT_DIR)',
             ],
             'link_settings': {
               'libraries': [
-                '-lX11',
+                '-lX11 -lXcursor',
               ],
             },
           },
         }, {  # use_x11==0
           'sources!': [
             'base/keycodes/keyboard_code_conversion_x.cc',
             'base/keycodes/keyboard_code_conversion_x.h',
             'base/x/',
           ],
         }],
@@ skipping 94 matching lines @@
                 'shutil.copyfile(\'<(ui_copy_target)\', \'<(ui_copy_dest)\'); ' \
                 'os.chmod(\'<(ui_copy_dest)\', 0700)'
               ]
             }
           ],
         },
       ],
     }],
   ],
 }