tree 6d457e225abc93e6ca49129f2e3c719253ddcab8
parent 8ebeb124bcb575950a4f7eb9255e450da1fef6c4
author Lei Zhang <thestig@chromium.org> 1709237577 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1709237577 +0000

Do no write out identity matrices in CPDF_PageContentGenerator

Concatenating the identity matrix is a no-op. Check for this case and
write out less data when generating PDFs. Update unit test expectations
to match the new behavior.

Change-Id: Ie157dffc4613369f194b5f5aa94578b2e2cfb810
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/117050
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Thomas Sepez <tsepez@google.com>
Commit-Queue: Lei Zhang <thestig@chromium.org>