Roll src/third_party/depot_tools 688dd321c9df..9779b146cdfe (2 commits)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/688dd321c9df..9779b146cdfe


git log 688dd321c9df..9779b146cdfe --date=short --no-merges --format='%ad %ae %s'
2019-05-29 jrn@google.com git-cl: Use modern environment variable name to trigger tracing
2019-05-29 iannucci@chromium.org Roll led to latest version.


Created with:
  gclient setdep -r src/third_party/depot_tools@9779b146cdfe

The AutoRoll server is located here: https://autoroll.skia.org/r/depot-tools-chromium-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


TBR=agable@chromium.org

Change-Id: Ie93914166886ee1d566a645362f205f7f98fa089
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1636910Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#664606}

DEPS

@@ -832,7 +832,7 @@ deps = {
   },
 
   'src/third_party/depot_tools':
-    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '688dd321c9dfb833e41c3f87ba602890991cb75b',
+    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '9779b146cdfec9abb6bb7ad1a7e8d21916a3dfd1',
 
   'src/third_party/devtools-node-modules':
     Var('chromium_git') + '/external/github.com/ChromeDevTools/devtools-node-modules' + '@' + Var('devtools_node_modules_revision'),