Enable more tests on Site Isolation FYI bots.
Enable more tests on Site Isolation FYI bots.

The new Linux tests are based off of the list in
testing/buildbot/chromium.linux.json

The new Windows tests are based off of the list in
testing/buildbot/chromium.win.json

All new tests seem to be passing on Linux.  Since we don't have a
Windows trybot, we'll have to verify the Windows part on the Windows
FYI bot once this lands.

BUG=417518

Review URL: https://codereview.chromium.org/1530333003

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#365942}

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