tree eba350801a4fcf400e3e7d943574f00a445ab352
parent 61b7467fd1b6ff21e760e375e566952c78fbbc90
author Tom Sepez <tsepez@chromium.org> 1636139448 +0000
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1636139448 +0000

Use optional<size_t> for CFX_XMLParser::entity_start_

Avoid use of ints for sizes, and use optional in place of a -1
sentinel now that the value is unsigned.

Change-Id: I4abb4d62dcaa770421b72955969e17fe74180380
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/86897
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>