Roll src/third_party/depot_tools 107c97c8377d..3306bbe476fd (5 commits)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/107c97c8377d..3306bbe476fd

git log 107c97c8377d..3306bbe476fd --date=short --no-merges --format='%ad %ae %s'
2019-10-07 ehmaldonado@chromium.org depot_tools: Remove buildbucket.py
2019-10-07 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-10-07 raul@tambre.ee gclient_utils: buffer output as bytestrings in Annotated
2019-10-07 raphael.kubo.da.costa@intel.com download_from_google_storage: Decode string passed to re.search()
2019-10-07 raphael.kubo.da.costa@intel.com download_from_google_storage: Do not call decode() on a string twice

Created with:
  gclient setdep -r src/third_party/depot_tools@3306bbe476fd

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/depot-tools-chromium-autoroll
Please CC agable@chromium.org on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

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

TBR=agable@chromium.org

Bug: chromium:984182,chromium:984182,chromium:1007872,chromium:984182,chromium:1007872
Change-Id: I0c124ecc2fb9d1eda0e129fedee04c7195c4a2cc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1845574Reviewed-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@{#703510}

DEPS

@@ -887,7 +887,7 @@ deps = {
   },
 
   'src/third_party/depot_tools':
-    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '107c97c8377dce5576583bd4d8c5b26010737797',
+    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '3306bbe476fd4b069aad347afdd5b4e3564234aa',
 
   'src/third_party/devtools-node-modules':
     Var('chromium_git') + '/external/github.com/ChromeDevTools/devtools-node-modules' + '@' + Var('devtools_node_modules_revision'),