borderObscuresBackground 1178 Source/core/rendering/RenderBox.cpp     if (!style->hasAppearance() && borderObscuresBackground() && backgroundHasOpaqueTopLayer())
borderObscuresBackground  268 Source/core/rendering/RenderBoxModelObject.h     bool borderObscuresBackground() const;
borderObscuresBackground  498 Source/core/rendering/RenderImage.cpp     if (backgroundClip == BorderFillBox && style()->hasBorder() && !borderObscuresBackground())