Revert HostContentSettingsMapFactory guest mode change.

A change in HostContentSettingsMapFactory::BuildServiceInstanceFor in
crrev.com/c/1594574 is reverted.
The previous code (before 1594574) checked for guest profile which was
replaced with guest session, which includes the guest profile and its
parent profile.

Bug: 947933
Change-Id: I708d11a94cb2d6084fecc9da5db88db4b7aad9a0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1615245
Reviewed-by: Martin Šrámek <msramek@chromium.org>
Commit-Queue: Ramin Halavati <rhalavati@chromium.org>
Cr-Commit-Position: refs/heads/master@{#660791}
1 file changed