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/f57841b78bedc98c7758d2dbe39a5021437abb8a git cl patch: cleanup tests. (tandrii@chromium.org)
  https://crrev.com/5cc2afd9b8fae7e6f2d0f0c07abf14a2a2916ee7 gclient_eval: Handle non-string variables. (ehmaldonado@chromium.org)


TBR=borenet@google.com

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Change-Id: I76e30824c0d9f4ace038751dbac9179d67e09e0a
Reviewed-on: https://skia-review.googlesource.com/149881
Commit-Queue: Recipe Roller <recipe-roller@chromium.org>
Reviewed-by: Recipe Roller <recipe-roller@chromium.org>

infra/config/recipes.cfg

@@ -14,7 +14,7 @@
   "deps": {
     "depot_tools": {
       "branch": "master",
-      "revision": "e263316d409e3aef2ecb0681dc5443054d8753f3",
+      "revision": "5cc2afd9b8fae7e6f2d0f0c07abf14a2a2916ee7",
       "url": "https://chromium.googlesource.com/chromium/tools/depot_tools.git"
     },
     "recipe_engine": {