Remove GTK AX support, we've never used it

Source/WebCore/accessibility/atk/WebKitAccessibleInterfaceValue.cpp

Index: Source/WebCore/accessibility/atk/WebKitAccessibleInterfaceValue.cpp
diff --git a/Source/WebCore/accessibility/atk/WebKitAccessibleInterfaceValue.cpp b/Source/WebCore/accessibility/atk/WebKitAccessibleInterfaceValue.cpp
deleted file mode 100644
index 6ba7424aabadb7516974ad90ba215dcb98d59633..0000000000000000000000000000000000000000
--- a/Source/WebCore/accessibility/atk/WebKitAccessibleInterfaceValue.cpp
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * Copyright (C) 2011, 2012 Igalia S.L.
- *
- * 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 "WebKitAccessibleInterfaceValue.h"
-
-#if HAVE(ACCESSIBILITY)
-
-#include "AccessibilityObject.h"
-#include "HTMLNames.h"
-#include "WebKitAccessibleWrapperAtk.h"
-
-using namespace WebCore;
-
-static AccessibilityObject* core(AtkValue* value)
-{
-    if (!WEBKIT_IS_ACCESSIBLE(value))
-        return 0;
-
-    return webkitAccessibleGetAccessibilityObject(WEBKIT_ACCESSIBLE(value));
-}
-
-static void webkitAccessibleValueGetCurrentValue(AtkValue* value, GValue* gValue)
-{
-    memset(gValue,  0, sizeof(GValue));
-    g_value_init(gValue, G_TYPE_FLOAT);
-    g_value_set_float(gValue, core(value)->valueForRange());
-}
-
-static void webkitAccessibleValueGetMaximumValue(AtkValue* value, GValue* gValue)
-{
-    memset(gValue,  0, sizeof(GValue));
-    g_value_init(gValue, G_TYPE_FLOAT);
-    g_value_set_float(gValue, core(value)->maxValueForRange());
-}
-
-static void webkitAccessibleValueGetMinimumValue(AtkValue* value, GValue* gValue)
-{
-    memset(gValue,  0, sizeof(GValue));
-    g_value_init(gValue, G_TYPE_FLOAT);
-    g_value_set_float(gValue, core(value)->minValueForRange());
-}
-
-static gboolean webkitAccessibleValueSetCurrentValue(AtkValue* value, const GValue* gValue)
-{
-    double newValue;
-    if (G_VALUE_HOLDS_DOUBLE(gValue))
-        newValue = g_value_get_double(gValue);
-    else if (G_VALUE_HOLDS_FLOAT(gValue))
-        newValue = g_value_get_float(gValue);
-    else if (G_VALUE_HOLDS_INT64(gValue))
-        newValue = g_value_get_int64(gValue);
-    else if (G_VALUE_HOLDS_INT(gValue))
-        newValue = g_value_get_int(gValue);
-    else if (G_VALUE_HOLDS_LONG(gValue))
-        newValue = g_value_get_long(gValue);
-    else if (G_VALUE_HOLDS_ULONG(gValue))
-        newValue = g_value_get_ulong(gValue);
-    else if (G_VALUE_HOLDS_UINT64(gValue))
-        newValue = g_value_get_uint64(gValue);
-    else if (G_VALUE_HOLDS_UINT(gValue))
-        newValue = g_value_get_uint(gValue);
-    else
-        return false;
-
-    AccessibilityObject* coreObject = core(value);
-    if (!coreObject->canSetValueAttribute())
-        return FALSE;
-
-    // Check value against range limits
-    newValue = std::max(static_cast<double>(coreObject->minValueForRange()), newValue);
-    newValue = std::min(static_cast<double>(coreObject->maxValueForRange()), newValue);
-
-    coreObject->setValue(String::number(newValue));
-    return TRUE;
-}
-
-static void webkitAccessibleValueGetMinimumIncrement(AtkValue* value, GValue* gValue)
-{
-    memset(gValue,  0, sizeof(GValue));
-    g_value_init(gValue, G_TYPE_FLOAT);
-
-    AccessibilityObject* coreObject = core(value);
-    if (!coreObject->getAttribute(HTMLNames::stepAttr).isEmpty()) {
-        g_value_set_float(gValue, coreObject->stepValueForRange());
-        return;
-    }
-
-    // If 'step' attribute is not defined, WebCore assumes a 5% of the
-    // range between minimum and maximum values, so return that.
-    float range = coreObject->maxValueForRange() - coreObject->minValueForRange();
-    g_value_set_float(gValue, range * 0.05);
-}
-
-void webkitAccessibleValueInterfaceInit(AtkValueIface* iface)
-{
-    iface->get_current_value = webkitAccessibleValueGetCurrentValue;
-    iface->get_maximum_value = webkitAccessibleValueGetMaximumValue;
-    iface->get_minimum_value = webkitAccessibleValueGetMinimumValue;
-    iface->set_current_value = webkitAccessibleValueSetCurrentValue;
-    iface->get_minimum_increment = webkitAccessibleValueGetMinimumIncrement;
-}
-
-#endif