tree aa0a36179eb223c226bd178ec3ae521b0f42bae4
parent 5036903677a2ce22739c263c7c09f81d5c5a7662
author Lei Zhang <thestig@chromium.org> 1695337673 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1695337673 +0000

Avoid some unnecessary SharedCopyOnWrite copies

Per suggestion on the bug, avoid copying in various SharedCopyOnWrite
objects if the copy is going to have the same value as the existing
copy. This just gets some of the low hanging fruits.

Bug: pdfium:1917
Change-Id: I587c26cdcdf580480419a4b4767a71c8b7c8230e
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/112070
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>