Remove GTK AX support, we've never used it

Source/WebCore/accessibility/atk/WebKitAccessibleInterfaceDocument.cpp

-/*
- * Copyright (C) 2008 Nuanti Ltd.
- * Copyright (C) 2009 Jan Alonzo
- * Copyright (C) 2012 Igalia S.L.
- * Copyright (C) 2013 Samsung Electronics
- *
- * Portions from Mozilla a11y, copyright as follows:
- *
- * The Original Code is mozilla.org code.
- *
- * The Initial Developer of the Original Code is
- * Sun Microsystems, Inc.
- * Portions created by the Initial Developer are Copyright (C) 2002
- * the Initial Developer. All Rights Reserved.
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public License
- * along with this library; see the file COPYING.LIB.  If not, write to
- * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301, USA.
- */
-
-#include "config.h"
-#include "WebKitAccessibleInterfaceDocument.h"
-
-#if HAVE(ACCESSIBILITY)
-
-#include "AccessibilityObject.h"
-#include "Document.h"
-#include "DocumentType.h"
-#include "WebKitAccessibleUtil.h"
-#include "WebKitAccessibleWrapperAtk.h"
-
-using namespace WebCore;
-
-static AccessibilityObject* core(AtkDocument* document)
-{
-    if (!WEBKIT_IS_ACCESSIBLE(document))
-        return 0;
-
-    return webkitAccessibleGetAccessibilityObject(WEBKIT_ACCESSIBLE(document));
-}
-
-static const gchar* documentAttributeValue(AtkDocument* document, const gchar* attribute)
-{
-    Document* coreDocument = core(document)->document();
-    if (!coreDocument)
-        return 0;
-
-    String value = String();
-    AtkCachedProperty atkCachedProperty;
-
-    if (!g_ascii_strcasecmp(attribute, "DocType") && coreDocument->doctype()) {
-        value = coreDocument->doctype()->name();
-        atkCachedProperty = AtkCachedDocumentType;
-    } else if (!g_ascii_strcasecmp(attribute, "Encoding")) {
-        value = coreDocument->charset();
-        atkCachedProperty = AtkCachedDocumentEncoding;
-    } else if (!g_ascii_strcasecmp(attribute, "URI")) {
-        value = coreDocument->documentURI();
-        atkCachedProperty = AtkCachedDocumentURI;
-    }
-
-    if (!value.isEmpty())
-        return cacheAndReturnAtkProperty(ATK_OBJECT(document), atkCachedProperty, value);
-
-    return 0;
-}
-
-static const gchar* webkitAccessibleDocumentGetAttributeValue(AtkDocument* document, const gchar* attribute)
-{
-    return documentAttributeValue(document, attribute);
-}
-
-static AtkAttributeSet* webkitAccessibleDocumentGetAttributes(AtkDocument* document)
-{
-    AtkAttributeSet* attributeSet = 0;
-    const gchar* attributes[] = { "DocType", "Encoding", "URI" };
-
-    for (unsigned i = 0; i < G_N_ELEMENTS(attributes); i++) {
-        const gchar* value = documentAttributeValue(document, attributes[i]);
-        if (value)
-            attributeSet = addToAtkAttributeSet(attributeSet, attributes[i], value);
-    }
-
-    return attributeSet;
-}
-
-static const gchar* webkitAccessibleDocumentGetLocale(AtkDocument* document)
-{
-    // TODO: Should we fall back on lang xml:lang when the following comes up empty?
-    String language = core(document)->language();
-    if (!language.isEmpty())
-        return cacheAndReturnAtkProperty(ATK_OBJECT(document), AtkCachedDocumentLocale, language);
-
-    return 0;
-}
-
-void webkitAccessibleDocumentInterfaceInit(AtkDocumentIface* iface)
-{
-    iface->get_document_attribute_value = webkitAccessibleDocumentGetAttributeValue;
-    iface->get_document_attributes = webkitAccessibleDocumentGetAttributes;
-    iface->get_document_locale = webkitAccessibleDocumentGetLocale;
-}
-
-#endif