It is time.

ui/views/accessibility/ax_aura_obj_cache.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 UI_VIEWS_ACCESSIBILITY_AX_AURA_OBJ_CACHE_H_
-#define UI_VIEWS_ACCESSIBILITY_AX_AURA_OBJ_CACHE_H_
-
-#include <map>
-
-#include "base/basictypes.h"
-#include "ui/views/views_export.h"
-
-template <typename T> struct DefaultSingletonTraits;
-
-namespace aura {
-class Window;
-}  // namespace aura
-
-namespace views {
-class AXAuraObjWrapper;
-class View;
-class Widget;
-
-// A cache responsible for assigning id's to a set of interesting Aura views.
-class VIEWS_EXPORT AXAuraObjCache {
- public:
-  // Get the single instance of this class.
-  static AXAuraObjCache* GetInstance();
-
-  // Get or create an entry in the cache based on an Aura view.
-  AXAuraObjWrapper* GetOrCreate(View* view);
-  AXAuraObjWrapper* GetOrCreate(Widget* widget);
-  AXAuraObjWrapper* GetOrCreate(aura::Window* window);
-
-  // Gets an id given an Aura view.
-  int32 GetID(View* view);
-  int32 GetID(Widget* widget);
-  int32 GetID(aura::Window* window);
-
-  // Gets the next unique id for this cache. Useful for non-Aura view backed
-  // views.
-  int32 GetNextID() { return current_id_++; }
-
-  // Removes an entry from this cache based on an Aura view.
-  void Remove(View* view);
-  void Remove(Widget* widget);
-  void Remove(aura::Window* window);
-
-  // Lookup a cached entry based on an id.
-  AXAuraObjWrapper* Get(int32 id);
-
-  // Remove a cached entry based on an id.
-  void Remove(int32 id);
-
- private:
-  friend struct DefaultSingletonTraits<AXAuraObjCache>;
-
-  AXAuraObjCache();
-  virtual ~AXAuraObjCache();
-
-  template <typename AuraViewWrapper, typename AuraView>
-      AXAuraObjWrapper* CreateInternal(
-          AuraView* aura_view, std::map<AuraView*, int32>& aura_view_to_id_map);
-
-  template<typename AuraView> int32 GetIDInternal(
-      AuraView* aura_view, std::map<AuraView*, int32>& aura_view_to_id_map);
-
-  template<typename AuraView> void RemoveInternal(
-      AuraView* aura_view, std::map<AuraView*, int32>& aura_view_to_id_map);
-
-  std::map<views::View*, int32> view_to_id_map_;
-  std::map<views::Widget*, int32> widget_to_id_map_;
-  std::map<aura::Window*, int32> window_to_id_map_;
-
-  std::map<int32, AXAuraObjWrapper*> cache_;
-  int32 current_id_;
-
-  DISALLOW_COPY_AND_ASSIGN(AXAuraObjCache);
-};
-
-}  // namespace views
-
-#endif  // UI_VIEWS_ACCESSIBILITY_AX_AURA_OBJ_CACHE_H_