fetch_souces.py: cache extracted hash and only extract if necessary am: 30e2e7b423...
authorPyry Haulos <phaulos@google.com>
Wed, 10 Aug 2016 22:19:26 +0000 (22:19 +0000)
committerandroid-build-merger <android-build-merger@google.com>
Wed, 10 Aug 2016 22:19:26 +0000 (22:19 +0000)
am: 8c45816a40

Change-Id: I5dacf457c9334ac34f20a34e1a508b9de456cf4f


Trivial merge