tree d2fff726d1e22dd1a709d6d7765856efd368c52a
parent c2710889e7eda2f88f6e8b1323bd3b971bbb885a
author Lei Zhang <thestig@chromium.org> 1647481807 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1647481807 +0000

Add a GetOrCreateDict() helper function.

Making sure one dictionary contains another dictionary is a fairly
common task. Add a helper to make that less tedious.

Change-Id: I386fb05f1af8216924dafc710fc9d04bcf050328
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/91550
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>