previousSentencePosition  824 Source/core/editing/FrameSelection.cpp         pos = previousSentencePosition(pos);
previousSentencePosition  901 Source/core/editing/FrameSelection.cpp         pos = previousSentencePosition(VisiblePosition(m_selection.extent(), m_selection.affinity()));
previousSentencePosition   50 Source/core/editing/VisibleUnits.h VisiblePosition previousSentencePosition(const VisiblePosition &);