inSameContainingBlockFlowElement  325 Source/core/dom/Node.h     bool inSameContainingBlockFlowElement(Node*);
inSameContainingBlockFlowElement 1063 Source/core/dom/Position.cpp     if (prev != *this && prev.deprecatedNode()->inSameContainingBlockFlowElement(deprecatedNode()) && prev.deprecatedNode()->isTextNode()) {