Roll src/third_party/pdfium in M124 from 7b90b15a21cf to dcdd830ae4e1
Commits rolled:
https://pdfium.googlesource.com/pdfium.git/+log/7b90b15a21cf..dcdd830ae4e1

Generated by: http://go/bbid/8747945576408320033

Change-Id: If43a4298f643f75b616c2a0c49a463957078caae
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5539310
Bot-Commit: Chrome Release Bot (LUCI) <chrome-official-brancher@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/branch-heads/6367@{#1174}
Cr-Branched-From: d158c6dc6e3604e6f899041972edf26087a49740-refs/heads/main@{#1274542}