Roll recipe dependencies (trivial).

This is an automated CL created by the recipe roller. This CL rolls recipe
changes from upstream projects (e.g. depot_tools) into downstream projects
(e.g. tools/build).


More info is at https://goo.gl/zkKdpD. Use https://goo.gl/noib3a to file a bug.
depot_tools:
  https://crrev.com/8aa774cfb078dcfe93cce1a57337820de095020c Fix bot_update example (machenbach@chromium.org)


TBR=borenet@google.com

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Change-Id: Ie0faa014827039854c7305ca5a447d3735b83098
Reviewed-on: https://skia-review.googlesource.com/23761
Reviewed-by: Recipe Roller <recipe-roller@chromium.org>
Commit-Queue: Recipe Roller <recipe-roller@chromium.org>
diff --git a/infra/config/recipes.cfg b/infra/config/recipes.cfg
index 951f316..7bc8898 100644
--- a/infra/config/recipes.cfg
+++ b/infra/config/recipes.cfg
@@ -14,7 +14,7 @@
   "deps": {
     "depot_tools": {
       "branch": "master",
-      "revision": "dd1bc7c0b0ff9c36f53b3adcac5ebf5bfff0bcf8",
+      "revision": "8aa774cfb078dcfe93cce1a57337820de095020c",
       "url": "https://chromium.googlesource.com/chromium/tools/depot_tools.git"
     },
     "recipe_engine": {