GitLab

Print preview UI expects the initial settings key to be in camelCase,
like |previewIsPdf|.

Bug: 989978
Change-Id: Ifcfee6f71e3dcdb4902054b7f9407c814898a481
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1825897
Auto-Submit: Daniel Hosseinian <dhoss@chromium.org>
Reviewed-by: Rebekah Potter <rbpotter@chromium.org>
Commit-Queue: Daniel Hosseinian <dhoss@chromium.org>
Cr-Commit-Position: refs/heads/master@{#700001}