[forbots] IWYU for ax_enums.h

ui/accessibility/platform/ax_platform_node.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_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_H_
 #define UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_H_
 
 #include "build/build_config.h"
-#include "ui/accessibility/ax_enums.h"
 #include "ui/accessibility/ax_export.h"
 #include "ui/gfx/native_widget_types.h"
 
 // Set PLATFORM_HAS_AX_PLATFORM_NODE_IMPL if this platform has a specific
 // implementation of AxPlatfromNode::Create().
 #undef PLATFORM_HAS_AX_PLATFORM_NODE_IMPL
 
 #if defined(OS_WIN)
 #define PLATFORM_HAS_AX_PLATFORM_NODE_IMPL 1
 #endif
 
 #if defined(OS_MACOSX)
 #define PLATFORM_HAS_AX_PLATFORM_NODE_IMPL 1
 #endif
 
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS) && defined(USE_X11)
 #define PLATFORM_HAS_AX_PLATFORM_NODE_IMPL 1
 #endif
 
 namespace ui {
 
+enum AXEvent : int;
 class AXPlatformNodeDelegate;
 
 // AXPlatformNode is the abstract base class for an implementation of
 // native accessibility APIs on supported platforms (e.g. Windows, Mac OS X).
 // An object that wants to be accessible can derive from AXPlatformNodeDelegate
 // and then call AXPlatformNode::Create. The delegate implementation should
 // own the AXPlatformNode instance (or otherwise manage its lifecycle).
 class AX_EXPORT AXPlatformNode {
  public:
   // Create an appropriate platform-specific instance. The delegate owns the
@@ skipping 34 matching lines @@
   virtual ~AXPlatformNode();
 
   AXPlatformNode* GetFromUniqueId(int32_t unique_id);
 
   int32_t unique_id_;
 };
 
 }  // namespace ui
 
 #endif  // UI_ACCESSIBILITY_PLATFORM_AX_PLATFORM_NODE_H_