unionDOMRanges    384 Source/core/editing/EditorCommand.cpp         bool selected = frame.selection().setSelectedRange(unionDOMRanges(mark.get(), frame.editor().selectedRange().get()).get(), DOWNSTREAM, FrameSelection::CloseTyping);
unionDOMRanges   1034 Source/core/editing/EditorCommand.cpp     frame.selection().setSelectedRange(unionDOMRanges(mark.get(), selection.get()).get(), DOWNSTREAM, FrameSelection::CloseTyping);