didSplitTextNode 3717 Source/core/dom/Document.cpp void Document::didSplitTextNode(Text& oldNode)
didSplitTextNode 1777 Source/core/dom/Range.cpp void Range::didSplitTextNode(Text& oldNode)
didSplitTextNode  453 Source/core/editing/FrameSelection.cpp void FrameSelection::didSplitTextNode(const Text& oldNode)