tree fcccdf86d4eef28a12f3aa4e623b5f3aa29fce12
parent 09e4c8ef18461a3b1ae30940bc37d4607c5bd873
author Lei Zhang <thestig@chromium.org> 1582245939 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1582245939 +0000

Observe CPDFSDK_PageView inside ExitWidget().

ExitWidget() can trigger the deletion of caller. Use an ObserverPtr to
check for this and bail out safely.

Bug: chromium:1026991
Change-Id: If27c1b02a0d6f3bb39c999a85366e393fa150687
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/66815
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>