Fortunately there is a special ole object group with
the MS_EMBED_ACTIVATEWHENVISIBLE flag which define this
behaviour.
Problem is that both Aspect and EmbedMisc are MS specific
enums so we can't use them directly for non-MS objects. But we
can handle opengl charts the same as this ole object group.

Change-Id: I49abeffce319cbb775709a72ba198a1f76b65374