setNeedsStyleRecalcForViewportUnits 3331 Source/core/dom/Document.cpp     setNeedsStyleRecalcForViewportUnits();
setNeedsStyleRecalcForViewportUnits  491 Source/core/dom/TreeScope.cpp             root->setNeedsStyleRecalcForViewportUnits();
setNeedsStyleRecalcForViewportUnits  167 Source/core/dom/TreeScope.h     void setNeedsStyleRecalcForViewportUnits();