Roll src/third_party/depot_tools 75c59424e3f1..53f9e0979a58 (2 commits)

https://chromium.googlesource.com/chromium/tools/depot_tools.git/+log/75c59424e3f1..53f9e0979a58

git log 75c59424e3f1..53f9e0979a58 --date=short --no-merges --format='%ad %ae %s'
2019-10-21 martiniss@google.com Roll led to latest version
2019-10-21 ehmaldonado@chromium.org depot_tools: Include httplib2 using vpython.

Created with:
  gclient setdep -r src/third_party/depot_tools@53f9e0979a58

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:1015682,chromium:1002153
Change-Id: Ia7715d47c6389847d0c79059d63b1992ca21c87e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1871645Reviewed-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@{#708064}

DEPS

@@ -891,7 +891,7 @@ deps = {
   },
 
   'src/third_party/depot_tools':
-    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '75c59424e3f11c3e3741d7d574ade51df369a7af',
+    Var('chromium_git') + '/chromium/tools/depot_tools.git' + '@' + '53f9e0979a583470e6504e73a1789b23ff0b0464',
 
   'src/third_party/devtools-node-modules':
     Var('chromium_git') + '/external/github.com/ChromeDevTools/devtools-node-modules' + '@' + Var('devtools_node_modules_revision'),