Roll chromium_revision af2d6e1462..61b254913a (395273:395276)

Change log: https://chromium.googlesource.com/chromium/src/+log/af2d6e1462..61b254913a
Full diff: https://chromium.googlesource.com/chromium/src/+/af2d6e1462..61b254913a

No dependencies changed.
No update to Clang.

TBR=

Review-Url: https://codereview.webrtc.org/1999373002
Cr-Commit-Position: refs/heads/master@{#12841}
diff --git a/DEPS b/DEPS
index 2afb906..a0f930e 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': 'af2d6e1462a9e2cef72e3d501b65560c5a616f76',
+  'chromium_revision': '61b254913ac4c5356ce760b414df5180ab97f728',
 }
 
 # NOTE: Use http rather than https; the latter can cause problems for users