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Decreases the CI bot from symbol_level=2 to 1.
Increases the try bot from symbol_level=0 to 1.

Needed to make room on disk for all the tests I'd want these bots to run.

Bug: 932269
Change-Id: Iba35a386b3090da8f6fb424ad20ca864d24e6ffe
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1540480Reviewed-by: John Budorick <jbudorick@chromium.org>
Commit-Queue: Ben Pastene <bpastene@chromium.org>
Cr-Commit-Position: refs/heads/master@{#644823}