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

chrome/browser/ui/aura/accessibility/automation_manager_aura.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/automation_manager_aura.h"
-
-#include <vector>
-
-#include "base/memory/singleton.h"
-#include "chrome/browser/browser_process.h"
-#include "chrome/browser/extensions/api/automation_internal/automation_util.h"
-#include "chrome/browser/profiles/profile_manager.h"
-#include "content/public/browser/ax_event_notification_details.h"
-#include "content/public/browser/browser_context.h"
-#include "ui/aura/window.h"
-#include "ui/views/accessibility/ax_aura_obj_cache.h"
-#include "ui/views/accessibility/ax_aura_obj_wrapper.h"
-#include "ui/views/view.h"
-#include "ui/views/widget/widget.h"
-
-using content::BrowserContext;
-
-// static
-AutomationManagerAura* AutomationManagerAura::GetInstance() {
-  return Singleton<AutomationManagerAura>::get();
-}
-
-void AutomationManagerAura::Enable(BrowserContext* context) {
-  enabled_ = true;
-  if (!current_tree_.get())
-    current_tree_.reset(new AXTreeSourceAura());
-  ResetSerializer();
-  SendEvent(context, current_tree_->GetRoot(), ui::AX_EVENT_LOAD_COMPLETE);
-  if (!pending_alert_text_.empty()) {
-    HandleAlert(context, pending_alert_text_);
-    pending_alert_text_.clear();
-  }
-}
-
-void AutomationManagerAura::Disable() {
-  enabled_ = false;
-
-  // Reset the serializer to save memory.
-  current_tree_serializer_->Reset();
-}
-
-void AutomationManagerAura::HandleEvent(BrowserContext* context,
-                                        views::View* view,
-                                        ui::AXEvent event_type) {
-  if (!enabled_)
-    return;
-
-  if (!context && g_browser_process->profile_manager())
-    context = g_browser_process->profile_manager()->GetLastUsedProfile();
-
-  if (!context) {
-    LOG(WARNING) << "Accessibility notification but no browser context";
-    return;
-  }
-
-  views::AXAuraObjWrapper* aura_obj =
-      views::AXAuraObjCache::GetInstance()->GetOrCreate(view);
-
-  if (processing_events_) {
-    pending_events_.push_back(std::make_pair(aura_obj, event_type));
-    return;
-  }
-
-  processing_events_ = true;
-  SendEvent(context, aura_obj, event_type);
-
-  for (size_t i = 0; i < pending_events_.size(); ++i)
-    SendEvent(context, pending_events_[i].first, pending_events_[i].second);
-
-  processing_events_ = false;
-  pending_events_.clear();
-}
-
-void AutomationManagerAura::HandleAlert(content::BrowserContext* context,
-                                        const std::string& text) {
-  if (!enabled_) {
-    pending_alert_text_ = text;
-    return;
-  }
-
-  views::AXAuraObjWrapper* obj =
-      static_cast<AXRootObjWrapper*>(current_tree_->GetRoot())
-          ->GetAlertForText(text);
-  SendEvent(context, obj, ui::AX_EVENT_ALERT);
-}
-
-void AutomationManagerAura::DoDefault(int32 id) {
-  CHECK(enabled_);
-  current_tree_->DoDefault(id);
-}
-
-void AutomationManagerAura::Focus(int32 id) {
-  CHECK(enabled_);
-  current_tree_->Focus(id);
-}
-
-void AutomationManagerAura::MakeVisible(int32 id) {
-  CHECK(enabled_);
-  current_tree_->MakeVisible(id);
-}
-
-void AutomationManagerAura::SetSelection(int32 id, int32 start, int32 end) {
-  CHECK(enabled_);
-  current_tree_->SetSelection(id, start, end);
-}
-
-AutomationManagerAura::AutomationManagerAura()
-    : enabled_(false), processing_events_(false) {
-}
-
-AutomationManagerAura::~AutomationManagerAura() {
-}
-
-void AutomationManagerAura::ResetSerializer() {
-  current_tree_serializer_.reset(
-      new ui::AXTreeSerializer<views::AXAuraObjWrapper*>(current_tree_.get()));
-}
-
-void AutomationManagerAura::SendEvent(BrowserContext* context,
-                                      views::AXAuraObjWrapper* aura_obj,
-                                      ui::AXEvent event_type) {
-  ui::AXTreeUpdate update;
-  current_tree_serializer_->SerializeChanges(aura_obj, &update);
-
-  // Route this event to special process/routing ids recognized by the
-  // Automation API as the desktop tree.
-  // TODO(dtseng): Would idealy define these special desktop constants in idl.
-  content::AXEventNotificationDetails detail(
-      update.node_id_to_clear, update.nodes, event_type, aura_obj->GetID(),
-      0, /* process_id */
-      0 /* routing_id */);
-  std::vector<content::AXEventNotificationDetails> details;
-  details.push_back(detail);
-  extensions::automation_util::DispatchAccessibilityEventsToAutomation(
-      details, context, gfx::Vector2d());
-}