GitLab

The implementation of StartScan now matches StartScanMultiPage in
Lorgnette. Convert LorgnetteManagerClient to use StartScan so that
StartScanMultiPage can be deleted.

Bug: b:161239919
Change-Id: Id3cd3bd7221aec461ade27cf3450f7f8fbf3fc98
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2427018Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Commit-Queue: Fletcher Woodruff <fletcherw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#810728}