Reland "Invoke service-based cancel for printing jobs"

This is a reland of commit 5201bfbd1425d2f4ff0b72fdb89e791c37ddc826

Includes a fix to ensure that the PrintJob object still has a reference
for the duration of OnDidCancel().  This protects against that object
and the associated TestPrintJobWorkerOop from getting deleted before
the call returns back the rest of processing in OnDidCancel().

Original change's description:
> Invoke service-based cancel for printing jobs
>
> When the Print Backend Service has a failure during printing it has
> been deleting the associated document data structure.  This can lead
> to use-after-free scenarios when multiple calls are already queued up
> for processing and an error happens in an earlier stage that is
> happening on a task runner.
>
> Update the service to do a local cancel on the printing context, but
> refrain from deleting the associated document data structure.  The
> service now relies upon the browser process to notify it with a Cancel
> call that is a signal to reclaim the document data resources.
>
> Change-Id: I1e5d643e576a81340c985770f8d4bc19add59c3e
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3658489
> Reviewed-by: Lei Zhang <thestig@chromium.org>
> Commit-Queue: Alan Screen <awscreen@chromium.org>
> Cr-Commit-Position: refs/heads/main@{#1073583}

Fixed: 1326580
Change-Id: I3970a00715fe19c6c8e9b809fe18b535a084d0ba
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4040026
Auto-Submit: Alan Screen <awscreen@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1074154}

• chrome/browser/printing/print_backend_service_manager.cc[diff]
• chrome/browser/printing/print_backend_service_manager.h[diff]
• chrome/browser/printing/print_browsertest.cc[diff]
• chrome/browser/printing/print_job_worker_oop.cc[diff]
• chrome/browser/printing/print_job_worker_oop.h[diff]
• chrome/services/printing/print_backend_service_impl.cc[diff]
• chrome/services/printing/print_backend_service_impl.h[diff]