shdocvw 2: Added [get|put]_Visible implementation.

[Jacek Caban]

Dimi Paun wrote:
> On Sun, 2006-04-30 at 14:51 +0200, Jacek Caban wrote:
>   
>> I also have tests showing that we do exactly what we should. The same
>> applies to a few of my other similar patches.
>>     
>
> This is not as obvious to people, it would be best if you could add
> explicit comments in all such cases, to avoid confusion in the future.
> BTW, I was about to send the exact same comments Robert sent :)
>   
I'll send a patch with comments. I'd prefer to add tests as well, but it
has to wait for the switch to MSHTML based WebBrowser implementation
(BTW that seems to be really near).

Jacek