removePlaceholderAt  143 Source/core/editing/CompositeEditCommand.h     void removePlaceholderAt(const Position&);
removePlaceholderAt  188 Source/core/editing/InsertTextCommand.cpp             removePlaceholderAt(placeholder);
removePlaceholderAt  196 Source/core/editing/InsertTextCommand.cpp             removePlaceholderAt(placeholder);