tree a2413c0d0eb8a7eb72f472db9ebab9657ce01417
parent e48aadab63c41c6483911553fe77afe773a2a297
author Tom Sepez <tsepez@chromium.org> 1632769485 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1632769485 +0000

De-virtualize CXFA_FFWidget::PreFinalize().

PDFium's use of virtual pre-finalizers was an artifact of converting
virtual dtors mostly as-is into pre-finalizers. Improve performance
by only implementing these on the sub-classes that actually require
them.

Bug: chromium:1252634
Change-Id: Ib0926716cb305ed3206d6696f1b5c78e03135b4f
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/85491
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>