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I noticed these while looking at the flag handling code path
in the host code and figured they should get cleaned up.

Change-Id: I91d0b9b8a483e386181650b8ae287b0247aa113b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2634084
Auto-Submit: Joe Downing <joedow@chromium.org>
Commit-Queue: Yuwei Huang <yuweih@chromium.org>
Reviewed-by: Yuwei Huang <yuweih@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844312}