Google Chrome's "Current Session" file is used to restore window arrangements and tabs when the browser is restarted.
The files are stored in a proprietary binary format identified by the
magic number "SNSS" and primarily documents in Chrome source
tree. python-snss
is a python package that implements a simplistic
parser for extracting some information from them.
python setup.py install
import snss
snss_path = "/Path/To/Library/Application Support/Google/Chrome/Default/Current Session"
snss_file = snss.SNSSFile(open(snss_path))
print snss_file[0]