Remove dependency of WebNode.cpp on AXObjectImpl

third_party/WebKit/Source/core/dom/AXObject.h

 // Copyright 2017 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 AXObject_h
 #define AXObject_h
 
 #include "core/CoreExport.h"
 
 namespace blink {
 
+class Node;
+
 enum AccessibilityRole {
   kUnknownRole = 0,  // Not mapped in platform APIs, generally indicates a bug
   kAbbrRole,         // No mapping to ARIA role.
   kAlertDialogRole,
   kAlertRole,
   kAnchorRole,      // No mapping to ARIA role.
   kAnnotationRole,  // No mapping to ARIA role.
   kApplicationRole,
   kArticleRole,
   kAudioRole,  // No mapping to ARIA role.
@@ skipping 255 matching lines @@
 // is exposed.
 enum AXDescriptionFrom {
   kAXDescriptionFromUninitialized = -1,
   kAXDescriptionFromAttribute = 0,
   kAXDescriptionFromContents,
   kAXDescriptionFromRelatedElement,
 };
 
 // TODO(sashab): Add pure virtual methods to this class to remove dependencies
 // on AXObjectImpl from outside of modules/.
-class CORE_EXPORT AXObject {};
+class CORE_EXPORT AXObject {
+ public:
+  // Static helper functions.
+  static bool IsInsideFocusableElementOrARIAWidget(const Node&);
+};
 
 }  // namespace blink
 
 #endif  // AXObject_h