Views a11y: Implement AXPlatformNode::FromNativeViewAccessible on all platforms.

ui/views/view.h

 // Copyright (c) 2012 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_VIEW_H_
 #define UI_VIEWS_VIEW_H_
 
 #include <stddef.h>
 
 #include <algorithm>
@@ skipping 18 matching lines @@
 #include "ui/compositor/layer_owner.h"
 #include "ui/compositor/paint_cache.h"
 #include "ui/events/event.h"
 #include "ui/events/event_target.h"
 #include "ui/gfx/geometry/insets.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/geometry/vector2d.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/path.h"
+#include "ui/views/accessibility/native_view_accessibility.h"
 #include "ui/views/view_targeter.h"
 #include "ui/views/views_export.h"
 
 #if defined(OS_WIN)
 #include "base/win/scoped_comptr.h"
 #endif
 
 using ui::OSExchangeData;
 
 namespace gfx {
@@ skipping 16 matching lines @@
 
 namespace views {
 
 class Background;
 class Border;
 class ContextMenuController;
 class DragController;
 class FocusManager;
 class FocusTraversable;
 class LayoutManager;
-class NativeViewAccessibility;
 class ScrollView;
 class ViewObserver;
 class Widget;
 class WordLookupClient;
 
 namespace internal {
 class PreEventDispatchHandler;
 class PostEventDispatchHandler;
 class RootView;
 class ScopedChildrenLock;
@@ skipping 1166 matching lines @@
   // function makes the decision explicit.
   std::string DoPrintViewGraph(bool first, View* view_with_children);
 #endif
 
  private:
   friend class internal::PreEventDispatchHandler;
   friend class internal::PostEventDispatchHandler;
   friend class internal::RootView;
   friend class internal::ScopedChildrenLock;
   friend class FocusManager;
+#if !defined(PLATFORM_HAS_NATIVE_VIEW_ACCESSIBILITY_IMPL)
+  friend class NativeViewAccessibility;
+#endif
   friend class ViewLayerTest;
   friend class Widget;
 
   // Painting  -----------------------------------------------------------------
 
   enum SchedulePaintType {
     // Indicates the size is the same (only the origin changed).
     SCHEDULE_PAINT_SIZE_SAME,
 
     // Indicates the size changed (and possibly the origin).
@@ skipping 337 matching lines @@
   // Drag and drop -------------------------------------------------------------
 
   DragController* drag_controller_;
 
   // Input  --------------------------------------------------------------------
 
   std::unique_ptr<ViewTargeter> targeter_;
 
   // Accessibility -------------------------------------------------------------
 
-  // Belongs to this view, but it's reference-counted on some platforms
-  // so we can't use a scoped_ptr. It's dereferenced in the destructor.
-  NativeViewAccessibility* native_view_accessibility_;
+  // The accessibility element used to represent this View.
+  std::unique_ptr<NativeViewAccessibility> native_view_accessibility_;
 
   // Observers -------------------------------------------------------------
 
   base::ObserverList<ViewObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(View);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_VIEW_H_