Move some AX attrs from AXNodeData to AXTreeData.

ui/accessibility/BUILD.gn

 # 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.
 
 import("//build/config/linux/pkg_config.gni")
 import("//build/config/ui.gni")
 import("//build/json_schema_api.gni")
 import("//testing/test.gni")
 if (is_android) {
   import("//build/config/android/rules.gni")
@@ skipping 32 matching lines @@
     "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_data.cc",
+    "ax_tree_data.h",
     "ax_tree_serializer.cc",
     "ax_tree_serializer.h",
     "ax_tree_source.h",
     "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",
@@ skipping 99 matching lines @@
 json_schema_api("ax_gen") {
   sources = [
     "ax_enums.idl",
   ]
   deps = [
     "//base/third_party/dynamic_annotations",
   ]
   root_namespace = "ui"
   schemas = true
 }