Use revision variables in DEPS.
Use revision variables in DEPS.

Bug: 782846
Change-Id: I915b8e97d6420019051b3fa77ae843a4942e7802
Reviewed-on: https://chromium-review.googlesource.com/1083316
Reviewed-by: Jamie Madill <7e492b4f1c8458024932de3ba475cbf015424c30@chromium.org>
Commit-Queue: Edward Lesmes <d05609f027dc667cc37492b1dc1bdea5d60fa82a@chromium.org>

ppy/angle,ppy/angle,ppy/angle,ppy/angle