GitLab

This CL migrates ScriptInjectionCallback::CompleteCallback to
base::OnceCallback, and migrates related uses of base::Bind to
base::BindOnce.

Bug: 1152265
Change-Id: If3182c7c0c45c5e1b45073dfe47edbf25d7081c1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2572777
Commit-Queue: Hui Yingst <nigi@chromium.org>
Reviewed-by: Devlin <rdevlin.cronin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#834986}