Added a quick heuristic to determine which objects are the target of in-page links and stop ignorin…

third_party/WebKit/Source/modules/accessibility/AXObject.h

 /*
  * Copyright (C) 2008, 2009, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nuanti Ltd.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 42 matching lines @@
 class LayoutObject;
 class ScrollableArea;
 
 typedef unsigned AXID;
 
 enum AccessibilityRole {
   UnknownRole = 0,
   AbbrRole,  // No mapping to ARIA role.
   AlertDialogRole,
   AlertRole,
+  AnchorRole,      // No mapping to ARIA role.
   AnnotationRole,  // No mapping to ARIA role.
   ApplicationRole,
   ArticleRole,
   AudioRole,  // No mapping to ARIA role.
   BannerRole,
   BlockquoteRole,     // No mapping to ARIA role.
   BusyIndicatorRole,  // No mapping to ARIA role.
   ButtonRole,
   CanvasRole,   // No mapping to ARIA role.
   CaptionRole,  // No mapping to ARIA role.
@@ skipping 551 matching lines @@
   virtual bool isControl() const { return false; }
   virtual bool isDataTable() const { return false; }
   virtual bool isEmbeddedObject() const { return false; }
   virtual bool isFieldset() const { return false; }
   virtual bool isHeading() const { return false; }
   virtual bool isImage() const { return false; }
   virtual bool isImageMapLink() const { return false; }
   virtual bool isInputImage() const { return false; }
   bool isLandmarkRelated() const;
   virtual bool isLink() const { return false; }
+  virtual bool isInPageLinkTarget() const { return false; }
   virtual bool isList() const { return false; }
   virtual bool isMenu() const { return false; }
   virtual bool isMenuButton() const { return false; }
   virtual bool isMenuList() const { return false; }
   virtual bool isMenuListOption() const { return false; }
   virtual bool isMenuListPopup() const { return false; }
   bool isMenuRelated() const;
   virtual bool isMeter() const { return false; }
   virtual bool isMockObject() const { return false; }
   virtual bool isNativeSpinButton() const { return false; }
@@ skipping 466 matching lines @@
   static unsigned s_numberOfLiveAXObjects;
 };
 
 #define DEFINE_AX_OBJECT_TYPE_CASTS(thisType, predicate)           \
   DEFINE_TYPE_CASTS(thisType, AXObject, object, object->predicate, \
                     object.predicate)
 
 }  // namespace blink
 
 #endif  // AXObject_h