tree 65daf5194d1796e29f3f433c7fc06b581b900850
parent 9ee2baba3fee64efecdb66770d590ea813ce2bc6
author Ben Wagner <bungeman@chromium.org> 1750297543 -0700
committer Pdfium LUCI CQ <pdfium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1750297543 -0700

Avoid loose bounds for invalid char codes

The current loose bounds computation assumes that the
CharInfo::char_code_ is valid. When the char code isn't valid the loose
bounds width will be zero.

In addition, the /ActualText kPiece currently attempt to store a valid
char code. However, this is incorrect as the text did not originate from
any char code. An incorrect char code could lead to the loose bounds
being calculated from a completely different glyph than that which was
used for drawing.

Bug: 42271607
Change-Id: Ie2d2d41287322f3aa3b28192d72f3a8301577d91
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/133370
Reviewed-by: Ben Wagner <bungeman@google.com>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Ben Wagner <bungeman@google.com>