AX checked state changes

third_party/WebKit/Source/modules/accessibility/AXObject.h

Index: third_party/WebKit/Source/modules/accessibility/AXObject.h
diff --git a/third_party/WebKit/Source/modules/accessibility/AXObject.h b/third_party/WebKit/Source/modules/accessibility/AXObject.h
index 090f8f1b11988f0313a68ee8fbcc919c77f2b0c4..3e4da2d4ad69af8e888fa3e8294dc7ca96c0b425 100644
--- a/third_party/WebKit/Source/modules/accessibility/AXObject.h
+++ b/third_party/WebKit/Source/modules/accessibility/AXObject.h
@@ -617,6 +617,7 @@ class MODULES_EXPORT AXObject : public GarbageCollectedFinalized<AXObject> {
   virtual bool isAnchor() const { return false; }
   bool isButton() const;
   bool isCanvas() const { return roleValue() == CanvasRole; }
+  bool isCheckable() const;
   bool isCheckbox() const { return roleValue() == CheckBoxRole; }
   bool isCheckboxOrRadio() const { return isCheckbox() || isRadioButton(); }
   bool isColorWell() const { return roleValue() == ColorWellRole; }
@@ -673,7 +674,7 @@ class MODULES_EXPORT AXObject : public GarbageCollectedFinalized<AXObject> {
   bool isWebArea() const { return roleValue() == WebAreaRole; }
 
   // Check object state.
-  virtual bool isChecked() const { return false; }
+  bool isChecked() const;
   virtual bool isClickable() const;
   virtual bool isCollapsed() const { return false; }
   virtual bool isEnabled() const { return false; }
@@ -840,7 +841,7 @@ class MODULES_EXPORT AXObject : public GarbageCollectedFinalized<AXObject> {
 
   // Properties of interactive elements.
   AXSupportedAction action() const;
-  virtual AccessibilityButtonState checkboxOrRadioValue() const;
+  AccessibilityButtonState checkboxOrRadioState() const;
   virtual AriaCurrentState ariaCurrentState() const {
     return AriaCurrentStateUndefined;
   }
@@ -1100,6 +1101,8 @@ class MODULES_EXPORT AXObject : public GarbageCollectedFinalized<AXObject> {
   void updateCachedAttributeValuesIfNeeded() const;
 
  private:
+  static bool isNativeInputInMixedState(const Node *);
+
   static bool includesARIAWidgetRole(const String&);
   static bool hasInteractiveARIAAttribute(const Element&);