Roll chromium_revision 4c670a4..6e376b8 (373575:373731)

Change log: https://chromium.googlesource.com/chromium/src/+log/4c670a4..6e376b8
Full diff: https://chromium.googlesource.com/chromium/src/+/4c670a4..6e376b8

No dependencies changed.
No update to Clang.

TBR=

Review URL: https://codereview.webrtc.org/1676433002

Cr-Commit-Position: refs/heads/master@{#11494}
diff --git a/DEPS b/DEPS
index eeea8bb..ad074f2 100644
--- a/DEPS
+++ b/DEPS
@@ -6,7 +6,7 @@
 vars = {
   'extra_gyp_flag': '-Dextra_gyp_flag=0',
   'chromium_git': 'https://chromium.googlesource.com',
-  'chromium_revision': '4c670a47efee15429ab7374ec622f52eb6731eb0',
+  'chromium_revision': '6e376b88131f333698f95eb35842c98aff051a9d',
 }
 
 # NOTE: Prefer revision numbers to tags for svn deps. Use http rather than