openjpeg: Prevent integer overflows during calculation of |l_nb_code_blocks_size|

BUG=628890
R=ochang@chromium.org

Review-Url: https://codereview.chromium.org/2212973002
diff --git a/AUTHORS b/AUTHORS
index 1425768..17a0c60 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -16,6 +16,7 @@
 Chris Palmer <palmer@chromium.org>
 Dan Sinclair <dsinclair@chromium.org>
 Finnur Thorarinsson <finnur@chromium.org>
+GiWan Go <gogil@stealien.com>
 Jiang Jiang <jiangj@opera.com>
 Jochen Eisinger <jochen@chromium.org>
 John Abd-El-Malek <jam@chromium.org>