It is time.

ui/accessibility/platform/ax_platform_node.h

Index: ui/accessibility/platform/ax_platform_node.h
diff --git a/ui/accessibility/platform/ax_platform_node.h b/ui/accessibility/platform/ax_platform_node.h
deleted file mode 100644
index 10ecba2064d0d76b9243d7a590ea98dbc969411b..0000000000000000000000000000000000000000
--- a/ui/accessibility/platform/ax_platform_node.h
+++ /dev/null
@@ -1,33 +0,0 @@
-// 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_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_H_
-#define UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_H_
-
-#include "ui/accessibility/ax_export.h"
-#include "ui/gfx/native_widget_types.h"
-
-namespace ui {
-
-class AXPlatformNodeDelegate;
-
-class AX_EXPORT AXPlatformNode {
- public:
-  // Create a platform appropriate instance.
-  static AXPlatformNode* Create(AXPlatformNodeDelegate* delegate);
-
-  // Call Destroy rather than deleting this, because the subclass may
-  // use reference counting.
-  virtual void Destroy() = 0;
-
-  virtual gfx::NativeViewAccessible GetNativeViewAccessible() = 0;
-
- protected:
-  AXPlatformNode();
-  virtual ~AXPlatformNode();
-};
-
-}  // namespace ui
-
-#endif  // UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_H_