CannotStartFromShadowBoundary   50 Source/core/dom/shadow/ComposedTreeWalker.h     ComposedTreeWalker(const Node*, StartPolicy = CannotStartFromShadowBoundary);
CannotStartFromShadowBoundary  119 Source/core/dom/shadow/ComposedTreeWalker.h     if (m_node && startPolicy == CannotStartFromShadowBoundary)