[PATCH 01/17] mshtml: Use is_main_content_window in a few more places.

[Marvin]

Hi,

While running your changed tests on Windows, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=49335

Your paranoid android.


=== debian9 (64 bit WoW report) ===

mshtml:
Unhandled exception: page fault on write access to 0x00000073 in 64-bit code (0x000000007bc5a314).

Report errors:
mshtml:script crashed (c0000005)