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This is a reland of 596311e0

Original change's description:
> [WebLayer] Use NetErrorAutoReloader
>
> Navigations which fail with network errors may attempt to
> auto-reload in some cases, in order to more seamlessly recover
> from transient failures.
>
> This behavior was previously implemented renderer-side and copied
> verbatim from Chrome. The Chrome implementation has been moved
> browser-side (see bug for why) and also made into a reusable
> component.
>
> This changes WebLayer to use the same component implementation
> and deletes all the corresponding renderer logic.
>
> Fixed: 1098578
> Change-Id: I10c337abcae36f64be47f31b89e36c7393989077
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2311371
> Commit-Queue: John Abd-El-Malek <jam@chromium.org>
> Reviewed-by: John Abd-El-Malek <jam@chromium.org>
> Reviewed-by: Clark DuVall <cduvall@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#792028}

Tbr: mmenke@chromium.org
Change-Id: I4dd0aaef47650d14c52b6b2ddcf35cee27d2ef35
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2324934
Commit-Queue: Ken Rockot <rockot@google.com>
Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Reviewed-by: Clark DuVall <cduvall@chromium.org>
Auto-Submit: Ken Rockot <rockot@google.com>
Cr-Commit-Position: refs/heads/master@{#792826}