PartiallyFixedPosition 1543 Source/core/dom/Range.cpp         *inFixed = allFixed ? EntirelyFixedPosition : (someFixed ? PartiallyFixedPosition : NotFixedPosition);
PartiallyFixedPosition 1575 Source/core/dom/Range.cpp         *inFixed = allFixed ? EntirelyFixedPosition : (someFixed ? PartiallyFixedPosition : NotFixedPosition);