WIP: Modified AXPosition to work with objects with both embedded object characters and text.

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

 /*
  * Copyright (C) 2012, Google Inc. All rights reserved.
  *
  * 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.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 166 matching lines @@
   String Description(AXNameFrom,
                      AXDescriptionFrom&,
                      AXObjectVector* description_objects) const override;
   String Description(AXNameFrom,
                      AXDescriptionFrom&,
                      DescriptionSources*,
                      AXRelatedObjectVector*) const override;
   String Placeholder(AXNameFrom) const override;
   bool NameFromLabelElement() const override;
 
+  // Selection.
+  AXRange Selection() const override;
+
   // Location
   void GetRelativeBounds(AXObjectImpl** out_container,
                          FloatRect& out_bounds_in_container,
                          SkMatrix44& out_container_transform) const override;
 
   // High-level accessibility tree access.
   AXObjectImpl* ComputeParent() const override;
   AXObjectImpl* ComputeParentIfExists() const override;
 
   // Low-level accessibility tree exploration.
@@ skipping 42 matching lines @@
                                NameSources*,
                                bool* found_text_alternative) const;
   float StepValueForRange() const;
   bool IsDescendantOfElementType(HashSet<QualifiedName>& tag_names) const;
   String PlaceholderFromNativeAttribute() const;
 };
 
 }  // namespace blink
 
 #endif  // AXNodeObject_h