Enable chrome.automation.getDesktop on all aura platforms.

chrome/browser/ui/ash/accessibility/automation_manager_ash.h

-// 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.
-
-#ifndef CHROME_BROWSER_UI_ASH_ACCESSIBILITY_AUTOMATION_MANAGER_ASH_H_
-#define CHROME_BROWSER_UI_ASH_ACCESSIBILITY_AUTOMATION_MANAGER_ASH_H_
-
-#include "base/basictypes.h"
-#include "base/memory/scoped_ptr.h"
-#include "chrome/browser/extensions/api/automation_internal/automation_action_adapter.h"
-#include "chrome/browser/ui/ash/accessibility/ax_tree_source_ash.h"
-#include "ui/accessibility/ax_tree_serializer.h"
-
-template <typename T> struct DefaultSingletonTraits;
-
-namespace content {
-class BrowserContext;
-}  // namespace content
-
-namespace views {
-class AXAuraObjWrapper;
-class View;
-}  // namespace views
-
-// Manages a tree of automation nodes.
-class AutomationManagerAsh : public extensions::AutomationActionAdapter {
- public:
-  // Get the single instance of this class.
-  static AutomationManagerAsh* GetInstance();
-
-  // Enable automation support for views.
-  void Enable(content::BrowserContext* context);
-
-  // Disable automation support for views.
-  void Disable();
-
-  // Handle an event fired upon a |View|.
-  void HandleEvent(content::BrowserContext* context,
-                   views::View* view,
-                   ui::AXEvent event_type);
-
-  void HandleAlert(content::BrowserContext* context, const std::string& text);
-
-  // AutomationActionAdapter implementation.
-  void DoDefault(int32 id) override;
-  void Focus(int32 id) override;
-  void MakeVisible(int32 id) override;
-  void SetSelection(int32 id, int32 start, int32 end) override;
-
- protected:
-  virtual ~AutomationManagerAsh();
-
- private:
-  friend struct DefaultSingletonTraits<AutomationManagerAsh>;
-
-  AutomationManagerAsh();
-
-    // Reset all state in this manager.
-  void ResetSerializer();
-
-  void SendEvent(content::BrowserContext* context,
-                 views::AXAuraObjWrapper* aura_obj,
-                 ui::AXEvent event_type);
-
-  // Whether automation support for views is enabled.
-  bool enabled_;
-
-  // Holds the active views-based accessibility tree. A tree currently consists
-  // of all views descendant to a |Widget| (see |AXTreeSourceViews|).
-  // A tree becomes active when an event is fired on a descendant view.
-  scoped_ptr <AXTreeSourceAsh> current_tree_;
-
-  // Serializes incremental updates on the currently active tree
-  // |current_tree_|.
-  scoped_ptr<ui::AXTreeSerializer<views::AXAuraObjWrapper*> >
-      current_tree_serializer_;
-
-  std::string pending_alert_text_;
-
-  DISALLOW_COPY_AND_ASSIGN(AutomationManagerAsh);
-};
-
-#endif  // CHROME_BROWSER_UI_ASH_ACCESSIBILITY_AUTOMATION_MANAGER_ASH_H_