isHeading        1181 Source/core/accessibility/AXNodeObject.cpp     if (isHeading() || isLink())
isHeading         111 Source/core/accessibility/AXNodeObject.h     virtual bool isHeading() const OVERRIDE FINAL;
isHeading         322 Source/core/accessibility/AXObject.h     virtual bool isHeading() const { return false; }
isHeading         649 Source/core/accessibility/AXRenderObject.cpp     if (isHeading())
isHeading        1265 Source/core/accessibility/AXRenderObject.cpp     if (isHeading() && children().size() == 1)