HasBoxDecorationsAndBackgroundIsKnownToBeObscured 1400 Source/core/rendering/RenderObject.h         BoxDecorationState boxDecorationState = computeBackgroundIsKnownToBeObscured() ? HasBoxDecorationsAndBackgroundIsKnownToBeObscured : HasBoxDecorationsAndBackgroundMayBeVisible;
HasBoxDecorationsAndBackgroundIsKnownToBeObscured 1403 Source/core/rendering/RenderObject.h     return m_bitfields.boxDecorationState() == HasBoxDecorationsAndBackgroundIsKnownToBeObscured;