tree 90917f85699dbd714cbbad19ad6b23f849b1bfe5
parent 62a7fd6bda145ca3bba0c87102a77e03b5d11037
author John Abd-El-Malek <jam@chromium.org> 1401918139 -0700
committer John Abd-El-Malek <jam@chromium.org> 1401918139 -0700

Use unsigned type for iteration to avoid int overflow.

If src_len in PDF_DecodeText is larger than 2^31,
2 * max_chars will overflow and the function will produce
an incorrect result.

BUG=none
R=bo_xu@foxitsoftware.com

Review URL: https://codereview.chromium.org/306923006