From 84be3a3cfec5107aac9a58ea00b58b733d393c7d Mon Sep 17 00:00:00 2001
From: npm <npm@chromium.org>
Date: Thu, 15 Sep 2016 13:27:21 -0700
Subject: Use ToUnicode mapping even when unicode is 0.

CPDF_Font::UnicodeFromCharcode returns 0 only if ToUnicode map maps the
charcode to 0. CPDF_SimpleFont::UnicodeFromCharcode and CPDF_CID_Font::
UnicodeFromCharCode return 0 only if the call to CPDF_Font returns 0.
In other cases, these methods return an empty string. So when
processing text, a 0 return from the method should not be replaced
with the charcode.

BUG=pdfium:583

Review-Url: https://codereview.chromium.org/2342073002
---
 testing/resources/bug_583.pdf | 216 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 216 insertions(+)
 create mode 100644 testing/resources/bug_583.pdf

(limited to 'testing/resources/bug_583.pdf')

diff --git a/testing/resources/bug_583.pdf b/testing/resources/bug_583.pdf
new file mode 100644
index 0000000000..fcb30d4c2a
--- /dev/null
+++ b/testing/resources/bug_583.pdf
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