Roll src-internal from 20d3823787dd to 3f6d4980860b (3 revisions)

https://chrome-internal.googlesource.com/chrome/src-internal.git/+log/20d3823787dd..3f6d4980860b

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://skia-autoroll.corp.goog/r/src-internal-chromium-autoroll
Please CC yutak@google.com,mpearson@google.com 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/+doc/master/autoroll/README.md

Cq-Include-Trybots: luci.chrome.try:linux-chromeos-chrome
Bug: chromium:1164243
Tbr: yutak@google.com,mpearson@google.com
Change-Id: I98b55b506d69b9fe546f2a6ee06c706bec917775
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2628342Reviewed-by: chromium-internal-autoroll <chromium-internal-autoroll@skia-corp.google.com.iam.gserviceaccount.com>
Commit-Queue: chromium-internal-autoroll <chromium-internal-autoroll@skia-corp.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#843307}

DEPS

@@ -1580,7 +1580,7 @@ deps = {
     Var('chromium_git') + '/v8/v8.git' + '@' +  Var('v8_revision'),
 
   'src-internal': {
-    'url': 'https://chrome-internal.googlesource.com/chrome/src-internal.git@20d3823787ddc5764dbe6d8bdbfa51e52c048550',
+    'url': 'https://chrome-internal.googlesource.com/chrome/src-internal.git@3f6d4980860bee3e94bcdc4364b564c68ca16c9f',
     'condition': 'checkout_src_internal',
   },