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Also some lint fixes and other cleanup; no functional changes

Bug: 1010217
Change-Id: Ia41657b7e1892056074ba6a21488b78e4ddc65da
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2459062
Commit-Queue: David Bienvenu <davidbienvenu@chromium.org>
Reviewed-by: Vasilii Sukhanov <vasilii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#815148}