tree c464d66c1d55dcba380059704d2b795730cf44da
parent 7f3ff5f331bdd2c585ae73cf69438ef8b9b568d3
author Aaron Zinman <aaron@azinman.com> 1466714826 -0700
committer Aaron Zinman <aaron@azinman.com> 1466714826 -0700

TBR: third-party: Adds iOS Google Sign-In SDK 4.0.0

Currently 3.x is in the tree and is in use by the older example code.
This adds 4.0.0 which is used by the Syncbase Todos app. The older
examples will eventually migrate to 4.0.0 and remove 3.x in a separate
CL.

Change-Id: Ie70d8ea245b54fa1608d082e24125df814aa66ba