Use isHTMLPlugInElement to replace checks

Source/core/accessibility/AXNodeObject.cpp

 /*
 * 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 546 matching lines @@
 
 bool AXNodeObject::isNativeImage() const
 {
     Node* node = this->node();
     if (!node)
         return false;
 
     if (isHTMLImageElement(*node))
         return true;
 
-    if (isHTMLAppletElement(*node) || isHTMLEmbedElement(*node) || isHTMLObjectElement(*node))
+    if (isHTMLPlugInElement(*node))
         return true;
 
     if (isHTMLInputElement(*node))
         return toHTMLInputElement(*node).isImageButton();
 
     return false;
 }
 
 bool AXNodeObject::isNativeTextControl() const
 {
@@ skipping 1126 matching lines @@
     float range = maxValueForRange() - minValueForRange();
     float value = valueForRange();
 
     value += range * (percentChange / 100);
     setValue(String::number(value));
 
     axObjectCache()->postNotification(node(), AXObjectCache::AXValueChanged, true);
 }
 
 } // namespace blink