Fix conversion to bool warning.
Fix conversion to bool warning.

BUG=453543

Change-Id: I287cc3b6e86df71eb3dfa3c82316ae56950913b3
Reviewed-on: https://chromium-review.googlesource.com/245833
Reviewed-by: Geoff Lang <b6fc25fe0362055230985c05cbfa8adb741ccc0f@chromium.org>
Tested-by: Geoff Lang <b6fc25fe0362055230985c05cbfa8adb741ccc0f@chromium.org>

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