Fix an endless loop in CJBig2_HuffmanTable::parseFromCodedBuffer

This issue is trigged by the conversion from unsigned int to signed int.
A large unsigned int is converted to int. It's represented as a negative
int which is used in the condition of while later.

BUG=482639
R=brucedawson@chromium.org

Review URL: https://codereview.chromium.org/1146913003
1 file changed