Reland "Add a metric to track setWebContentsDebuggingEnabled"

This is a reland of commit 1d61bc24f5c5f510d88da4337f93b7fe70b0d522

Original change's description:
> Add a metric to track setWebContentsDebuggingEnabled
>
> Adds a boolean histogram to track how many times an app enables setWebContentsDebuggingEnabled, this will help with determining the usefulness of go/webview-net-logs-dev-ui.
>
> Bug: 40653078
> Change-Id: Ie5b29f3120da053021d23748ebc2f6b9e88c1b3e
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5494367
> Reviewed-by: Nate Fischer <ntfschr@chromium.org>
> Reviewed-by: Michael van Ouwerkerk <mvanouwerkerk@chromium.org>
> Reviewed-by: Richard (Torne) Coles <torne@chromium.org>
> Commit-Queue: Thomas Bull <thomasbull@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1304476}

Bug: 40653078
Change-Id: I55f0c26481e088dd6229c30e1da3e9af24382f42
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5594035
Reviewed-by: Richard (Torne) Coles <torne@chromium.org>
Reviewed-by: Michael van Ouwerkerk <mvanouwerkerk@chromium.org>
Commit-Queue: Thomas Bull <thomasbull@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1312422}