Use six.moves.urllib.parse instead of urlparse

To keep Python 3.x compatibility, use six.moves.urllib.parse to
replace urlparse. tools/lintstack is changed to pass pylint test.

Partial-Bug: #1279611

Change-Id: I0ceaaccbf6c67b45609b4f2f5639c362b32d10ad
Merge "Use six.moves.urllib.parse instead of urlparse"