Remove GTK AX support, we've never used it

Source/WebCore/accessibility/atk/AccessibilityObjectAtk.cpp

Index: Source/WebCore/accessibility/atk/AccessibilityObjectAtk.cpp
diff --git a/Source/WebCore/accessibility/atk/AccessibilityObjectAtk.cpp b/Source/WebCore/accessibility/atk/AccessibilityObjectAtk.cpp
deleted file mode 100644
index c398d55340df13628a62081a8454417d201bd71f..0000000000000000000000000000000000000000
--- a/Source/WebCore/accessibility/atk/AccessibilityObjectAtk.cpp
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * Copyright (C) 2008 Apple Ltd.
- * Copyright (C) 2008 Alp Toker <alp@atoker.com>
- *
- * 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 "AccessibilityObject.h"
-
-#include "RenderObject.h"
-#include "RenderText.h"
-#include <glib-object.h>
-
-#if HAVE(ACCESSIBILITY)
-
-namespace WebCore {
-
-bool AccessibilityObject::accessibilityIgnoreAttachment() const
-{
-    return false;
-}
-
-AccessibilityObjectInclusion AccessibilityObject::accessibilityPlatformIncludesObject() const
-{
-    AccessibilityObject* parent = parentObject();
-    if (!parent)
-        return DefaultBehavior;
-
-    AccessibilityRole role = roleValue();
-    if (role == HorizontalRuleRole)
-        return IncludeObject;
-
-    // We expose the slider as a whole but not its value indicator.
-    if (role == SliderThumbRole)
-        return IgnoreObject;
-
-    // When a list item is made up entirely of children (e.g. paragraphs)
-    // the list item gets ignored. We need it.
-    if (isGroup() && parent->isList())
-        return IncludeObject;
-
-    // Entries and password fields have extraneous children which we want to ignore.
-    if (parent->isPasswordField() || parent->isTextControl())
-        return IgnoreObject;
-
-    // Include all tables, even layout tables. The AT can decide what to do with each.
-    if (role == CellRole || role == TableRole)
-        return IncludeObject;
-
-    // The object containing the text should implement AtkText itself.
-    if (role == StaticTextRole)
-        return IgnoreObject;
-
-    // Include all list items, regardless they have or not inline children
-    if (role == ListItemRole)
-        return IncludeObject;
-
-    // Bullets/numbers for list items shouldn't be exposed as AtkObjects.
-    if (role == ListMarkerRole)
-        return IgnoreObject;
-
-    // Never expose an unknown object, since AT's won't know what to
-    // do with them. This is what is done on the Mac as well.
-    if (role == UnknownRole)
-        return IgnoreObject;
-
-    // Given a paragraph or div containing a non-nested anonymous block, WebCore
-    // ignores the paragraph or div and includes the block. We want the opposite:
-    // ATs are expecting accessible objects associated with textual elements. They
-    // usually have no need for the anonymous block. And when the wrong objects
-    // get included or ignored, needed accessibility signals do not get emitted.
-    if (role == ParagraphRole || role == DivRole) {
-        // Don't call textUnderElement() here, because it's slow and it can
-        // crash when called while we're in the middle of a subtree being deleted.
-        if (!renderer()->firstChild())
-            return DefaultBehavior;
-
-        if (!parent->renderer() || parent->renderer()->isAnonymousBlock())
-            return DefaultBehavior;
-
-        for (RenderObject* r = renderer()->firstChild(); r; r = r->nextSibling()) {
-            if (r->isAnonymousBlock())
-                return IncludeObject;
-        }
-    }
-
-    // Block spans result in objects of ATK_ROLE_PANEL which are almost always unwanted.
-    // However, if we ignore block spans whose parent is the body, the child controls
-    // will become immediate children of the ATK_ROLE_DOCUMENT_FRAME and any text will
-    // become text within the document frame itself. This ultimately may be what we want
-    // and would largely be consistent with what we see from Gecko. However, ignoring
-    // spans whose parent is the body changes the current behavior we see from WebCore.
-    // Until we have sufficient time to properly analyze these cases, we will defer to
-    // WebCore. We only check that the parent is not aria because we do not expect
-    // anonymous blocks which are aria-related to themselves have an aria role, nor
-    // have we encountered instances where the parent of an anonymous block also lacked
-    // an aria role but the grandparent had one.
-    if (renderer() && renderer()->isAnonymousBlock() && !parent->renderer()->isBody()
-        && parent->ariaRoleAttribute() == UnknownRole)
-        return IgnoreObject;
-
-    return DefaultBehavior;
-}
-
-AccessibilityObjectWrapper* AccessibilityObject::wrapper() const
-{
-    return m_wrapper;
-}
-
-void AccessibilityObject::setWrapper(AccessibilityObjectWrapper* wrapper)
-{
-    if (wrapper == m_wrapper)
-        return;
-
-    if (m_wrapper)
-        g_object_unref(m_wrapper);
-
-    m_wrapper = wrapper;
-
-    if (m_wrapper)
-        g_object_ref(m_wrapper);
-}
-
-bool AccessibilityObject::allowsTextRanges() const
-{
-    // Check type for the AccessibilityObject.
-    if (isTextControl() || isWebArea() || isGroup() || isLink() || isHeading() || isListItem() || isTableCell())
-        return true;
-
-    // Check roles as the last fallback mechanism.
-    AccessibilityRole role = roleValue();
-    return role == ParagraphRole || role == LabelRole || role == DivRole || role == FormRole;
-}
-
-unsigned AccessibilityObject::getLengthForTextRange() const
-{
-    unsigned textLength = text().length();
-
-    if (textLength)
-        return textLength;
-
-    // Gtk ATs need this for all text objects; not just text controls.
-    Node* node = this->node();
-    RenderObject* renderer = node ? node->renderer() : 0;
-    if (renderer && renderer->isText()) {
-        RenderText* renderText = toRenderText(renderer);
-        textLength = renderText ? renderText->textLength() : 0;
-    }
-
-    // Get the text length from the elements under the
-    // accessibility object if the value is still zero.
-    if (!textLength && allowsTextRanges())
-        textLength = textUnderElement().length();
-
-    return textLength;
-}
-
-} // namespace WebCore
-
-#endif // HAVE(ACCESSIBILITY)