Roll chromium_revision 46123c9a86..c20f387895 (385366:385427)

Change log: https://chromium.googlesource.com/chromium/src/+log/46123c9a86..c20f387895
Full diff: https://chromium.googlesource.com/chromium/src/+/46123c9a86..c20f387895

Changed dependencies:
* src/third_party/nss: https://chromium.googlesource.com/chromium/deps/nss.git/+log/225bfc39c9..ccb083050b
DEPS diff: https://chromium.googlesource.com/chromium/src/+/46123c9a86..c20f387895/DEPS

No update to Clang.

TBR=

Review URL: https://codereview.webrtc.org/1853353004

Cr-Commit-Position: refs/heads/master@{#12263}
diff --git a/DEPS b/DEPS
index a5db243..8c5221b 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': '46123c9a869599c66e27c50d03312fbf3911efe0',
+  'chromium_revision': 'c20f387895601a5f9de440683c3faa9d66c7c485',
 }
 
 # NOTE: Use http rather than https; the latter can cause problems for users