Remove remaining AX code.

sky/engine/public/web/WebDocument.h

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 32 matching lines @@
 
 namespace v8 {
 class Value;
 template <class T> class Handle;
 }
 
 namespace blink {
 
 class Document;
 class DocumentType;
-class WebAXObject;
 class WebDocumentType;
 class WebElement;
 class WebString;
 class WebURL;
 
 // Provides readonly access to some properties of a DOM document.
 class WebDocument : public WebNode {
 public:
     WebDocument() { }
     WebDocument(const WebDocument& e) : WebNode(e) { }
@@ skipping 38 matching lines @@
 #if BLINK_IMPLEMENTATION
     WebDocument(const PassRefPtrWillBeRawPtr<Document>&);
     WebDocument& operator=(const PassRefPtrWillBeRawPtr<Document>&);
     operator PassRefPtrWillBeRawPtr<Document>() const;
 #endif
 };
 
 } // namespace blink
 
 #endif