Roll chromium_revision bf2de97090..57c478d214 (441048:441049)

Change log: https://chromium.googlesource.com/chromium/src/+log/bf2de97090..57c478d214
Full diff: https://chromium.googlesource.com/chromium/src/+/bf2de97090..57c478d214

No dependencies changed.
No update to Clang.

TBR=
BUG=None

Review-Url: https://codereview.webrtc.org/2611503002
Cr-Commit-Position: refs/heads/master@{#15858}
diff --git a/DEPS b/DEPS
index 34f53be..ca729ac 100644
--- a/DEPS
+++ b/DEPS
@@ -2,7 +2,7 @@
 
 vars = {
   'chromium_git': 'https://chromium.googlesource.com',
-  'chromium_revision': 'bf2de970902e539b5b58e7fabeea5a65e5dc17ed',
+  'chromium_revision': '57c478d21411925ed557e98838e68febb00b794e',
   'boringssl_git': 'https://boringssl.googlesource.com',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling swarming_client