It is time.

ui/accessibility/BUILD.gn

Index: ui/accessibility/BUILD.gn
diff --git a/ui/accessibility/BUILD.gn b/ui/accessibility/BUILD.gn
deleted file mode 100644
index 80c400037c176da4e287b331f882ea134298abdc..0000000000000000000000000000000000000000
--- a/ui/accessibility/BUILD.gn
+++ /dev/null
@@ -1,71 +0,0 @@
-# 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.
-
-component("accessibility") {
-  sources = [
-    "ax_enums.cc",
-    "ax_enums.h",
-    "ax_node.cc",
-    "ax_node.h",
-    "ax_node_data.cc",
-    "ax_node_data.h",
-    "ax_serializable_tree.cc",
-    "ax_serializable_tree.h",
-    "ax_text_utils.cc",
-    "ax_text_utils.h",
-    "ax_tree.cc",
-    "ax_tree.h",
-    "ax_tree_serializer.cc",
-    "ax_tree_serializer.h",
-    "ax_tree_source.h",
-    "ax_tree_update.cc",
-    "ax_tree_update.h",
-    "ax_view_state.cc",
-    "ax_view_state.h",
-    "platform/ax_platform_node.cc",
-    "platform/ax_platform_node.h",
-    "platform/ax_platform_node_base.cc",
-    "platform/ax_platform_node_base.h",
-    "platform/ax_platform_node_delegate.h",
-    "platform/ax_platform_node_mac.h",
-    "platform/ax_platform_node_mac.mm",
-  ]
-
-  defines = [ "ACCESSIBILITY_IMPLEMENTATION" ]
-
-  public_deps = [
-    "//base",
-    "//ui/gfx",
-    "//ui/gfx/geometry",
-  ]
-}
-
-source_set("test_support") {
-  sources = [
-    "tree_generator.cc",
-    "tree_generator.h",
-  ]
-
-  deps = [
-    ":accessibility",
-  ]
-}
-
-test("accessibility_unittests") {
-  sources = [
-    "ax_generated_tree_unittest.cc",
-    "ax_tree_serializer_unittest.cc",
-    "ax_tree_unittest.cc",
-  ]
-
-  deps = [
-    ":accessibility",
-    ":test_support",
-    "//base",
-    "//base/test:run_all_unittests",
-    "//testing/gtest",
-    "//ui/gfx",
-    "//ui/gfx/geometry",
-  ]
-}