Removing empty function definitions and WebAXObject interfaces

Source/core/accessibility/AXObjectCache.cpp

 /*
  * Copyright (C) 2008, 2009, 2010 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 883 matching lines @@
     // Only update if the accessibility object already exists and it's
     // not already marked as dirty.
     if (AXObject* obj = get(renderer)) {
         if (!obj->needsToUpdateChildren()) {
             obj->setNeedsToUpdateChildren();
             postNotification(renderer, AXChildrenChanged, true);
         }
     }
 }
 
-void AXObjectCache::startCachingComputedObjectAttributesUntilTreeMutates()
-{
-    // FIXME: no longer needed. When Chromium no longer calls
-    // WebAXObject::startCachingComputedObjectAttributesUntilTreeMutates,
-    // delete this function and the WebAXObject interfaces.
-}
-
-void AXObjectCache::stopCachingComputedObjectAttributes()
-{
-    // FIXME: no longer needed (see above).
-}
-
 const Element* AXObjectCache::rootAXEditableElement(const Node* node)
 {
     const Element* result = node->rootEditableElement();
     const Element* element = node->isElementNode() ? toElement(node) : node->parentElement();
 
     for (; element; element = element->parentElement()) {
         if (nodeIsTextControl(element))
             result = element;
     }
 
@@ skipping 86 matching lines @@
 {
     postPlatformNotification(getOrCreate(scrollView), AXScrollPositionChanged);
 }
 
 void AXObjectCache::handleScrollPositionChanged(RenderObject* renderObject)
 {
     postPlatformNotification(getOrCreate(renderObject), AXScrollPositionChanged);
 }
 
 } // namespace WebCore