SameSizeAsRenderObject 113 Source/core/rendering/RenderObject.cpp virtual ~SameSizeAsRenderObject() { } // Allocate vtable pointer. SameSizeAsRenderObject 123 Source/core/rendering/RenderObject.cpp COMPILE_ASSERT(sizeof(RenderObject) == sizeof(SameSizeAsRenderObject), RenderObject_should_stay_small);