tree 96bb64df3166e46db397e405789588bf8dc53842
parent 785a26dc649af80c593f899a606dff4dae7c48fd
author Tom Sepez <tsepez@chromium.org> 1539799071 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1539799071 +0000

Add CPDF_{Array,Dictionary}Locker to catch illegal iteration patterns.

Move begin/end methods onto locker object which tracks whether
iterators are in existence.

Change-Id: Ia869f313fce48d10a0d0180d0cc083eed6ea1584
Reviewed-on: https://pdfium-review.googlesource.com/c/44070
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>