Remove dependency of WebNode.cpp on AXObjectImpl

third_party/WebKit/Source/modules/accessibility/AXObjectImpl.cpp

Index: third_party/WebKit/Source/modules/accessibility/AXObjectImpl.cpp
diff --git a/third_party/WebKit/Source/modules/accessibility/AXObjectImpl.cpp b/third_party/WebKit/Source/modules/accessibility/AXObjectImpl.cpp
index cdc1ec6e7efc22da4e1ad83e254b9e6342daecc0..bef8d97b56ab45d5616b710b737dc53bdf7f33d6 100644
--- a/third_party/WebKit/Source/modules/accessibility/AXObjectImpl.cpp
+++ b/third_party/WebKit/Source/modules/accessibility/AXObjectImpl.cpp
@@ -58,7 +58,6 @@ using namespace HTMLNames;
 
 namespace {
 typedef HashMap<String, AccessibilityRole, CaseFoldingHash> ARIARoleMap;
-typedef HashSet<String, CaseFoldingHash> ARIAWidgetSet;
 
 struct RoleEntry {
   const char* aria_role;
@@ -315,32 +314,6 @@ static Vector<AtomicString>* CreateInternalRoleNameVector() {
   return internal_role_name_vector;
 }
 
-const char* g_aria_widgets[] = {
-    // From http://www.w3.org/TR/wai-aria/roles#widget_roles
-    "alert", "alertdialog", "button", "checkbox", "dialog", "gridcell", "link",
-    "log", "marquee", "menuitem", "menuitemcheckbox", "menuitemradio", "option",
-    "progressbar", "radio", "scrollbar", "slider", "spinbutton", "status",
-    "tab", "tabpanel", "textbox", "timer", "tooltip", "treeitem",
-    // Composite user interface widgets.
-    // This list is also from the w3.org site referenced above.
-    "combobox", "grid", "listbox", "menu", "menubar", "radiogroup", "tablist",
-    "tree", "treegrid"};
-
-static ARIAWidgetSet* CreateARIARoleWidgetSet() {
-  ARIAWidgetSet* widget_set = new HashSet<String, CaseFoldingHash>();
-  for (size_t i = 0; i < WTF_ARRAY_LENGTH(g_aria_widgets); ++i)
-    widget_set->insert(String(g_aria_widgets[i]));
-  return widget_set;
-}
-
-const char* g_aria_interactive_widget_attributes[] = {
-    // These attributes implicitly indicate the given widget is interactive.
-    // From http://www.w3.org/TR/wai-aria/states_and_properties#attrs_widgets
-    "aria-activedescendant", "aria-checked",  "aria-controls",
-    "aria-disabled",  // If it's disabled, it can be made interactive.
-    "aria-expanded",         "aria-haspopup", "aria-multiselectable",
-    "aria-pressed",          "aria-required", "aria-selected"};
-
 HTMLDialogElement* GetActiveDialogElement(Node* node) {
   return node->GetDocument().ActiveModalDialog();
 }
@@ -1907,48 +1880,6 @@ AccessibilityRole AXObjectImpl::AriaRoleToWebCoreRole(const String& value) {
   return role;
 }
 
-bool AXObjectImpl::IsInsideFocusableElementOrARIAWidget(const Node& node) {
-  const Node* cur_node = &node;
-  do {
-    if (cur_node->IsElementNode()) {
-      const Element* element = ToElement(cur_node);
-      if (element->IsFocusable())
-        return true;
-      String role = element->getAttribute("role");
-      if (!role.IsEmpty() && AXObjectImpl::IncludesARIAWidgetRole(role))
-        return true;
-      if (HasInteractiveARIAAttribute(*element))
-        return true;
-    }
-    cur_node = cur_node->parentNode();
-  } while (cur_node && !isHTMLBodyElement(node));
-  return false;
-}
-
-bool AXObjectImpl::HasInteractiveARIAAttribute(const Element& element) {
-  for (size_t i = 0; i < WTF_ARRAY_LENGTH(g_aria_interactive_widget_attributes);
-       ++i) {
-    const char* attribute = g_aria_interactive_widget_attributes[i];
-    if (element.hasAttribute(attribute)) {
-      return true;
-    }
-  }
-  return false;
-}
-
-bool AXObjectImpl::IncludesARIAWidgetRole(const String& role) {
-  static const HashSet<String, CaseFoldingHash>* role_set =
-      CreateARIARoleWidgetSet();
-
-  Vector<String> role_vector;
-  role.Split(' ', role_vector);
-  for (const auto& child : role_vector) {
-    if (role_set->Contains(child))
-      return true;
-  }
-  return false;
-}
-
 bool AXObjectImpl::NameFromContents(bool recursive) const {
   // ARIA 1.1, section 5.2.7.5.
   bool result = false;