Roll chromium_revision a20ca9fe57..eae1bf6b1e (438523:438554)

Change log: https://chromium.googlesource.com/chromium/src/+log/a20ca9fe57..eae1bf6b1e
Full diff: https://chromium.googlesource.com/chromium/src/+/a20ca9fe57..eae1bf6b1e

No dependencies changed.
No update to Clang.

TBR=
BUG=None

Review-Url: https://codereview.webrtc.org/2574323002
Cr-Commit-Position: refs/heads/master@{#15613}
diff --git a/DEPS b/DEPS
index 69bbd9c..8d03e35 100644
--- a/DEPS
+++ b/DEPS
@@ -5,7 +5,7 @@
 
 vars = {
   'chromium_git': 'https://chromium.googlesource.com',
-  'chromium_revision': 'a20ca9fe5726b33fb6b0d9f3b10b545fd6e6b195',
+  'chromium_revision': 'eae1bf6b1e049585a95a449d98a77e7f187c6c83',
 }
 
 deps = {