tree dd731b500b2315ddf0902a1a0d8742d49b094c25
parent b2e0cb39594db1ae3758f46752150d9aeb722b5c
author Tom Sepez <tsepez@chromium.org> 1632767244 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1632767244 +0000

Translate to CPDFSDK_Widget before invoking CFFL.

Prevent CFFL from seeing the CPDFSDK_Annot superclass, since CFFL
can't do anything with it anyways. This also gives the widget
handler some purpose other than just proxying a call to CFFL.

There's a small penalty in making a second observer to get type
correctness. Theoretically we should be able to get rid of this
since we've got leftmost superclasses and casting wouldn't have
to compute new addresses.

Change-Id: I5cfa728bb9498c35e7e5ae5af50c88304f534354
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/85411
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>