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
(or complain)

build:
  https://crrev.com/1a9a50a459c9e3c081719d3e835cac213c319136 Roll recipe dependencies (trivial). (recipe-roller@chromium.org)
depot_tools:
  https://crrev.com/7e16cf303221bbcf81d632924e19ddc888da9c3b owners.py: partial fix for owners-check perf regression (nick@chromium.org)

TBR=martiniss@chromium.org,phajdan.jr@chromium.org
BUG=642793

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Review-Url: https://codereview.chromium.org/2349733004
Cr-Commit-Position: refs/heads/master@{#419326}

infra/config/recipes.cfg

@@ -5,13 +5,13 @@ deps {
   project_id: "build"
   url: "https://chromium.googlesource.com/chromium/tools/build.git"
   branch: "master"
-  revision: "f74386f7e19ff3f32693d222262d1a3ee79799ef"
+  revision: "1a9a50a459c9e3c081719d3e835cac213c319136"
 }
 deps {
   project_id: "depot_tools"
   url: "https://chromium.googlesource.com/chromium/tools/depot_tools.git"
   branch: "master"
-  revision: "6ac12ffd596e338c43e25dc3889e8ac552c2e885"
+  revision: "7e16cf303221bbcf81d632924e19ddc888da9c3b"
 }
 deps {
   project_id: "recipe_engine"