Move ui/base/x/x11_error_tracker to base/x11.

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': [
     'shell_dialogs.gypi',
@@ skipping 328 matching lines @@
         'base/x/selection_owner.cc',
         'base/x/selection_owner.h',
         'base/x/selection_requestor.cc',
         'base/x/selection_requestor.h',
         'base/x/selection_utils.cc',
         'base/x/selection_utils.h',
         'base/x/work_area_watcher_x.cc',
         'base/x/work_area_watcher_x.h',
         'base/x/x11_atom_cache.cc',
         'base/x/x11_atom_cache.h',
-        'base/x/x11_error_tracker.cc',
-        'base/x/x11_error_tracker.h',
-        'base/x/x11_error_tracker_gtk.cc',
         'base/x/x11_util.cc',
         'base/x/x11_util.h',
         'base/x/x11_util_internal.h',
         'events/event.cc',
         'events/event.h',
         'events/event_constants.h',
         'events/event_conversion_gtk.cc',
         'events/event_conversion_gtk.h',
         'events/event_dispatcher.cc',
         'events/event_dispatcher.h',
@@ skipping 388 matching lines @@
             'gfx/gtk_preserve_window.cc',
             'gfx/gtk_preserve_window.h',
             'gfx/gdk_compat.h',
             'gfx/gtk_compat.h',
             'gfx/gtk_util.cc',
             'gfx/gtk_util.h',
             'gfx/image/cairo_cached_surface.cc',
             'gfx/image/cairo_cached_surface.h',
             'gfx/scoped_gobject.h',
           ],
-          'sources!': [
-            'base/x/x11_error_tracker.cc',
-          ],
         }],
         ['chromeos==1 or (use_aura==1 and OS=="linux" and use_x11==0)', {
           'sources!': [
             'base/clipboard/clipboard_aurax11.cc',
             'base/dragdrop/os_exchange_data_provider_aurax11.cc',
             'base/touch/touch_device.cc',
           ],
         }, {
           'sources!': [
             'base/clipboard/clipboard_aura.cc',
@@ skipping 323 matching lines @@
               'xcode_settings': {
                 'GCC_SYMBOLS_PRIVATE_EXTERN': 'NO',
               },
             }],
           ],
         },
       ],
     }],
   ],
 }