shdocvw: Implement IWebBrowser::ExecWB and IWebBrowser::QueryStatusWB.

[Greg Geldorp]

From: Erich Hoover
> Hmm, interesting - thanks for taking a look into this, I really appreciate
> it.  I ran a test on a different XP SP3 machine here (this time a dual-core)
> and it worked just fine.  So, at first I thought this must be an issue to
> the combination of multi-core and Windows 7.
> However, if the location of the exception has anything to say about it
> (crashing after test_Navigate2:test_LocationURL), then my guess would be that
> it's because of the "wb" global.  I didn't notice this before (or if I did, I
> forgot) but test_Navigate2:test_ready_state uses the IWebBrowser2 "wb" global,
>  which I did not initialize until after test_Navigate2.
> If you wouldn't mind giving it a try on your system where the error is
> reproducible, I've attached a revised patch where this variable is initialized
> properly.

Jackpot. This version ran 10,000 times without a glitch on the dual-core machine.

Greg.