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/355a52109ec78c1bda63274fadaa2f83462b604d Roll recipe dependencies (trivial). (recipe-roller@chromium.org)
  https://crrev.com/38954ea2aea645d40d933ec08fa9300978745851 Make syzygy recipes explicitly set GIT_MODE (agable@chromium.org)
  https://crrev.com/e10345ca9ae54bb82c86679d2e107dabb92a04bc Make v8 recipes explicitly set GIT_MODE (agable@chromium.org)
  https://crrev.com/1841f028ff591483facb7ada955e1e6eb942f343 Make dart recipes explicitly set GIT_MODE (agable@chromium.org)
  https://crrev.com/4fe7d03aee971b7daadc70b69dcf0f43eb1a59a5 Add stip@ to chromium.py OWNERS. (stip@chromium.org)
  https://crrev.com/32a901e0ee458a3b063f995ab461d38096ba80fd Make iOS recipes explicitly set GIT_MODE (agable@chromium.org)
  https://crrev.com/6ae64c302a5ae3bfc0df6d520b4945dfbd05c9ec Make android recipes explicitly set GIT_MODE (agable@chromium.org)
  https://crrev.com/6679485ce287924084b369b20fab59c1f6ef8122 Enable swarming for iOS try bots (smut@google.com)
depot_tools:
  https://crrev.com/f14eaff8148de420c63c87bd67678bf86837641a Remove --base_url from git cl and upload.py (agable@chromium.org)

TBR=martiniss@chromium.org,phajdan.jr@chromium.org
BUG=598405,638750,640251

Recipe-Tryjob-Bypass-Reason: Autoroller
Bugdroid-Send-Email: False
Review-Url: https://codereview.chromium.org/2274173004
Cr-Commit-Position: refs/heads/master@{#414294}

infra/config/recipes.cfg

@@ -5,13 +5,13 @@ deps {
   project_id: "build"
   url: "https://chromium.googlesource.com/chromium/tools/build.git"
   branch: "master"
-  revision: "caa4e0ba756e8a3b5592a604d53ddaf9ba92dfbf"
+  revision: "6679485ce287924084b369b20fab59c1f6ef8122"
 }
 deps {
   project_id: "depot_tools"
   url: "https://chromium.googlesource.com/chromium/tools/depot_tools.git"
   branch: "master"
-  revision: "92bec4f56f991d35ddcf9c4d8a0bdd8ce1b10735"
+  revision: "f14eaff8148de420c63c87bd67678bf86837641a"
 }
 deps {
   project_id: "recipe_engine"