Revert "Enable chrome.automation.getDesktop on all aura platforms."

chrome/browser/ui/aura/accessibility/ax_root_obj_wrapper.cc

-// 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.
-
-#include "chrome/browser/ui/aura/accessibility/ax_root_obj_wrapper.h"
-
-#include "base/strings/utf_string_conversions.h"
-#include "ui/accessibility/ax_node_data.h"
-#include "ui/accessibility/ax_view_state.h"
-#include "ui/aura/window.h"
-#include "ui/views/accessibility/ax_aura_obj_cache.h"
-#include "ui/views/accessibility/ax_window_obj_wrapper.h"
-
-AXRootObjWrapper::AXRootObjWrapper(int32 id)
-    : id_(id), alert_window_(new aura::Window(NULL)) {
-}
-
-AXRootObjWrapper::~AXRootObjWrapper() {
-  if (alert_window_) {
-    delete alert_window_;
-    alert_window_ = NULL;
-  }
-}
-
-views::AXAuraObjWrapper* AXRootObjWrapper::GetAlertForText(
-    const std::string& text) {
-  alert_window_->SetTitle(base::UTF8ToUTF16((text)));
-  views::AXWindowObjWrapper* window_obj =
-      static_cast<views::AXWindowObjWrapper*>(
-          views::AXAuraObjCache::GetInstance()->GetOrCreate(alert_window_));
-  window_obj->set_is_alert(true);
-  return window_obj;
-}
-
-bool AXRootObjWrapper::HasChild(views::AXAuraObjWrapper* child) {
-  std::vector<views::AXAuraObjWrapper*> children;
-  GetChildren(&children);
-  return std::find(children.begin(), children.end(), child) != children.end();
-}
-
-views::AXAuraObjWrapper* AXRootObjWrapper::GetParent() {
-  return NULL;
-}
-
-void AXRootObjWrapper::GetChildren(
-    std::vector<views::AXAuraObjWrapper*>* out_children) {
-  views::AXAuraObjCache::GetInstance()->GetTopLevelWindows(out_children);
-}
-
-void AXRootObjWrapper::Serialize(ui::AXNodeData* out_node_data) {
-  out_node_data->id = id_;
-  out_node_data->role = ui::AX_ROLE_DESKTOP;
-  // TODO(dtseng): Apply a richer set of states.
-  out_node_data->state = 0;
-}
-
-int32 AXRootObjWrapper::GetID() {
-  return id_;
-}