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

base/base.gypi

 # 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.
 
 {
   'target_defaults': {
     'variables': {
       'base_target': 0,
     },
     'target_conditions': [
@@ skipping 649 matching lines @@
           'win/startup_information.cc',
           'win/startup_information.h',
           'win/text_services_message_filter.cc',
           'win/text_services_message_filter.h',
           'win/win_util.cc',
           'win/win_util.h',
           'win/windows_version.cc',
           'win/windows_version.h',
           'win/wrapped_window_proc.cc',
           'win/wrapped_window_proc.h',
+          'x11/x11_error_tracker.cc',
+          'x11/x11_error_tracker.h',
+          'x11/x11_error_tracker_gtk.cc',
         ],
         'conditions': [
           ['google_tv==1', {
            'sources': [
              'android/context_types.cc',
              'android/context_types.h',
            ],
           }],
         ],
         'defines': [
@@ skipping 216 matching lines @@
           # Remove all unnecessary files for build_nexe.py to avoid exceeding
           # command-line-string limitation when building NaCl on Windows.
           ['OS == "win" and >(nacl_untrusted_build)==1', {
               'sources/': [ ['exclude', '\\.h$'] ],
           }],
           ['<(use_system_nspr)==1 and >(nacl_untrusted_build)==0', {
             'sources/': [
               ['exclude', '^third_party/nspr/'],
             ],
           }],
+          ['<(toolkit_uses_gtk) == 1', {
+            'sources!': [
+              'x11/x11_error_tracker.cc',
+            ],
+          }, {  # toolkit_uses_gtk!=1
+            'sources!': [
+              'x11/x11_error_tracker_gtk.cc',
+            ],
+          }],
         ],
       }],
     ],
   },
 }