subrange          158 Source/core/editing/TextCheckingHelper.cpp PassRefPtrWillBeRawPtr<Range> TextCheckingParagraph::subrange(int characterOffset, int characterCount) const
subrange         2041 Source/core/editing/TextIterator.cpp PassRefPtrWillBeRawPtr<Range> TextIterator::subrange(Range* entireRange, int characterOffset, int characterCount)