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This is a reland of 55f04b52

Original change's description:
> Copy attributes of old DocumentLoader on javascript: URL & XSLT commits
>
> When javascript: URL evaluates into a string, or XSLT document change
> happens, we will commit a new document but won't notify the browser of
> the change of documents, as no URL/origin change happens, essentially
> treating it as just a content update within the previously committed
> document.
>
> However, we actually create a new DocumentLoader and Document for the
> commit, and not all attributes of the old document are actually carried
> over to the new document. This CL copies most attributes from the
> previous document through DocumentLoader::CreateParamsToClone(), to
> ensure future navigations within the new document won't result in
> confusion in the browser. Some examples of things that are now copied to
> the new document: HistoryItem, http_method, http_status_code,
> devtools_navigation_token (so XSLT document transformations show up
> on devtools), etc.
>
> Bug: 1151954, 1048106
> Change-Id: Iefd620c7c3896f2f1ae2fdcc60404361363124eb
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2589206
> Commit-Queue: Rakina Zata Amni <rakina@chromium.org>
> Reviewed-by: Charlie Reis <creis@chromium.org>
> Reviewed-by: Daniel Cheng <dcheng@chromium.org>
> Reviewed-by: Nate Chapin <japhet@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#843047}

Bug: 1151954
Bug: 1048106
Change-Id: I045cd84d088999cb903c0899ebc40cb72219ab3d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2628267
Commit-Queue: Rakina Zata Amni <rakina@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Charlie Reis <creis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#843355}