tree 85d649b51a60cd066112f7ed99b9a466d65d1a83
parent 857ae9fe9cb9c8e9c450395f4f11f99f99eb86c4
author Lei Zhang <thestig@chromium.org> 1553277279 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1553277279 +0000

Avoid a CHECK failure inside CXFA_AttachNodeList::Insert().

Make sure the node to insert before, when it exists, is actually a
member of the CXFA_AttachNodeList. Give CXFA_List::Insert() a return
value, so when the validation fails, the caller can indicate failure.

BUG=pdfium:1263

Change-Id: Ia11f94a2407281694080d42cddbcc1c076bde5c9
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/52177
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>