Last few steps of text alternative computation algorithm

Source/modules/accessibility/InspectorAccessibilityAgent.cpp

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 
 #include "modules/accessibility/InspectorAccessibilityAgent.h"
 
 #include "core/dom/AXObjectCache.h"
 #include "core/dom/DOMNodeIds.h"
@@ skipping 108 matching lines @@
 bool roleAllowsRequired(AccessibilityRole role)
 {
     return role == ComboBoxRole || role == CellRole || role == ListBoxRole || role == RadioGroupRole || role == SpinButtonRole || role == TextFieldRole || role == TreeRole || role == ColumnHeaderRole || role == RowHeaderRole || role == TreeGridRole;
 }
 
 bool roleAllowsSort(AccessibilityRole role)
 {
     return role == ColumnHeaderRole || role == RowHeaderRole;
 }
 
-bool roleAllowsRangeValues(AccessibilityRole role)
-{
-    return role == ProgressIndicatorRole || role == ScrollBarRole || role == SliderRole || role == SpinButtonRole;
-}
-
 bool roleAllowsChecked(AccessibilityRole role)
 {
     return role == MenuItemCheckBoxRole || role == MenuItemRadioRole || role == RadioButtonRole || role == CheckBoxRole || role == TreeItemRole || role == ListBoxOptionRole || role == SwitchRole;
 }
 
 bool roleAllowsSelected(AccessibilityRole role)
 {
     return role == CellRole || role == ListBoxOptionRole || role == RowRole || role == TabRole || role == ColumnHeaderRole || role == MenuItemRadioRole || role == RadioButtonRole || role == RowHeaderRole || role == TreeItemRole;
 }
 
@@ skipping 43 matching lines @@
     }
 
     if (roleAllowsRequired(role)) {
         properties->addItem(createProperty(AXWidgetAttributes::Required, createBooleanValue(axObject->isRequired())));
     }
 
     if (roleAllowsSort(role)) {
         // TODO(aboxhall): sort
     }
 
-    if (roleAllowsRangeValues(role)) {
+    if (axObject->isRange()) {
         properties->addItem(createProperty(AXWidgetAttributes::Valuemin, createValue(axObject->minValueForRange())));
         properties->addItem(createProperty(AXWidgetAttributes::Valuemax, createValue(axObject->maxValueForRange())));
         properties->addItem(createProperty(AXWidgetAttributes::Valuetext, createValue(axObject->valueDescription())));
     }
 }
 
 void fillWidgetStates(AXObject* axObject, PassRefPtr<TypeBuilder::Array<AXProperty>> properties)
 {
     AccessibilityRole role = axObject->roleValue();
     if (roleAllowsChecked(role)) {
@@ skipping 166 matching lines @@
     accessibilityNode = buildObjectForNode(node, axObject, cacheImpl, properties);
 }
 
 DEFINE_TRACE(InspectorAccessibilityAgent)
 {
     visitor->trace(m_page);
     InspectorBaseAgent::trace(visitor);
 }
 
 } // namespace blink