win: Fix TEB.TlsSlots offset
win: Fix TEB.TlsSlots offset

The Crashpad representation of the TEB struct had an incorrect PVOID
reserved of len 397. This should be 402 once we calculate that the other
members occupy 40/80 (32 vs 64) bytes.

Wine has a well documented copy
https://github.com/wine-mirror/wine/blob/4df0162caf431d0069371e6c0776b83ed4c35735/include/winternl.h#L309
that shows the offsets TlsSlots should be at. This patch makes that
change. TlsSlots is now at offset 3600 on 32-bit and offset 5248 on
64-bit.

Change-Id: I4ea4c44b1e49d3ea02d433f386f164703a373dab
Reviewed-on: https://chromium-review.googlesource.com/717040
Reviewed-by: Mark Mentovai <f1b5a91d4d6ad523f2610114591c007e75d15084@chromium.org>
Commit-Queue: Mark Mentovai <f1b5a91d4d6ad523f2610114591c007e75d15084@chromium.org>

chromium/crashpad,atom/crashpad,atom/crashpad,chromium/crashpad,chromium/crashpad,atom/crashpad