Revert of Rename AXObject to AXObjectImpl in modules/ and web/

third_party/WebKit/Source/modules/accessibility/AXSlider.cpp

 /*
  * Copyright (C) 2009 Apple 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 82 matching lines @@
   thumb->SetParent(this);
 
   // Before actually adding the value indicator to the hierarchy,
   // allow the platform to make a final decision about it.
   if (thumb->AccessibilityIsIgnored())
     cache.Remove(thumb->AxObjectID());
   else
     children_.push_back(thumb);
 }
 
-AXObjectImpl* AXSlider::ElementAccessibilityHitTest(
-    const IntPoint& point) const {
+AXObject* AXSlider::ElementAccessibilityHitTest(const IntPoint& point) const {
   if (children_.size()) {
     DCHECK(children_.size() == 1);
     if (children_[0]->GetBoundsInFrameCoordinates().Contains(point))
       return children_[0].Get();
   }
 
   return AxObjectCache().GetOrCreate(layout_object_);
 }
 
 void AXSlider::SetValue(const String& value) {
@@ skipping 33 matching lines @@
   DCHECK(thumb_element);
   return thumb_element->GetLayoutObject();
 }
 
 bool AXSliderThumb::ComputeAccessibilityIsIgnored(
     IgnoredReasons* ignored_reasons) const {
   return AccessibilityIsIgnoredByDefault(ignored_reasons);
 }
 
 }  // namespace blink