Migrate ChromeClient::NotifySwapTime callees to CrossThreadBindOnce

... instead of CrossThreadBind().

ChromeClientImpl::NotifySwapTime actually calls out to
blink::WebWidgetClient::NotifySwapTime(base::OnceCallback ...);

BUG=964947
R=haraken@chromium.org, hiroshige@chromium.org

Change-Id: Iba9da7b9c7912973c197791279d53f301e2c6f8a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1621105
Commit-Queue: Antonio Gomes <tonikitoo@igalia.com>
Commit-Queue: Hiroshige Hayashizaki <hiroshige@chromium.org>
Auto-Submit: Antonio Gomes <tonikitoo@igalia.com>
Reviewed-by: Hiroshige Hayashizaki <hiroshige@chromium.org>
Cr-Commit-Position: refs/heads/master@{#661498}
7 files changed