tree 2cb98a2d6014735d22030d6b234a610c742dc67e
parent 235683e8c00b558fd4ab484b577233ccfeca6a63
author Tom Sepez <tsepez@chromium.org> 1618419508 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1618419508 +0000

Avoid holding raw pointer to GCed sub-class through virtual interface.

Make the interface a gc-mixin, and trace it like any other member. This
is strictly more correct, though it shouldn't matter because of other
traced pointers back to the widget thru the widget mgr.

Change-Id: Ia496102534c5141a5be33091f6804f48ffa4dc5d
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/79370
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>