explicitGridColumnCount  574 Source/core/rendering/RenderGrid.cpp     return (side == ColumnStartSide || side == ColumnEndSide) ? explicitGridColumnCount() : explicitGridRowCount();
explicitGridColumnCount  814 Source/core/rendering/RenderGrid.cpp     size_t maximumColumnIndex = std::max<size_t>(1, explicitGridColumnCount());
explicitGridColumnCount  107 Source/core/rendering/RenderGrid.h     size_t explicitGridColumnCount() const;