base: Remove dependency on x11.

base/BUILD.gn

 # Copyright (c) 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.
 
 import("//build/config/ui.gni")
 
 component("base") {
   sources = [
     "third_party/dmg_fp/dmg_fp.h",
     "third_party/dmg_fp/g_fmt.cc",
@@ skipping 790 matching lines @@
 
   # Linux.
   if (is_linux) {
     # TODO(brettw) this will need to be parameterized at some point.
     linux_configs = [
       "//build/config/linux:glib",
     ]
     if (toolkit_uses_gtk) {
       linux_configs += [ "//build/config/linux:gtk" ]
     }
-    if (use_x11) {
-      linux_configs += [
-        "//build/config/linux:x11",
-      ]
-    }
 
     configs += linux_configs
     all_dependent_configs = linux_configs
 
     if (!is_android) {
       # These dependencies are not required on Android, and in the case
       # of xdg_mime must be excluded due to licensing restrictions.
       deps += [
         "//base/third_party/symbolize",
         "//base/third_party/xdg_mime",
         "//base/third_party/xdg_user_dirs",
       ]
     }
   } else {
     # Non-Linux.
     sources -= [
       "nix/mime_util_xdg.cc",
       "nix/mime_util_xdg.h",
       "nix/xdg_util.cc",
       "nix/xdg_util.h",
     ]
   }
 
-  if (!use_x11) {
-    sources -= [
-      "message_loop/message_pump_x11.cc",
-      "message_loop/message_pump_x11.h",
-    ]
-  }
-
   if (!use_glib) {
     sources -= [
       "message_loop/message_pump_glib.cc",
       "message_loop/message_pump_glib.h",
     ]
   }
   if (!toolkit_uses_gtk) {
     sources -= [
       "message_loop/message_pump_gtk.cc",
       "message_loop/message_pump_gtk.h",
@@ skipping 62 matching lines @@
   #    # TODO(jschuh): crbug.com/167187 fix size_t to int truncations.
   #    'msvs_disabled_warnings': [
   #      4267,
   #    ],
   #  }],
   #],
   #'variables': {
   #  'optimize': 'max',
   #},
 }