Implement aria-modal

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

 /*
  * Copyright (C) 2012, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 111 matching lines @@
   bool isProgressIndicator() const override;
   bool isRichlyEditable() const override;
   bool isSlider() const override;
   bool isNativeSlider() const override;
 
   // Check object state.
   bool isChecked() const final;
   bool isClickable() const final;
   bool isEnabled() const override;
   AccessibilityExpanded isExpanded() const override;
+  bool isModal() const final;
   bool isPressed() const final;
   bool isReadOnly() const override;
   bool isRequired() const final;
 
   // Check whether certain properties can be modified.
   bool canSetFocusAttribute() const override;
   bool canSetValueAttribute() const override;
   bool canSetSelectedAttribute() const override;
 
   // Properties of static elements.
@@ skipping 94 matching lines @@
                                NameSources*,
                                bool* foundTextAlternative) const;
   float stepValueForRange() const;
   bool isDescendantOfElementType(const HTMLQualifiedName& tagName) const;
   String placeholderFromNativeAttribute() const;
 };
 
 }  // namespace blink
 
 #endif  // AXNodeObject_h