Roll chromium_revision 775aa60705..42e64efbfe (454791:454794)

Change log: https://chromium.googlesource.com/chromium/src/+log/775aa60705..42e64efbfe
Full diff: https://chromium.googlesource.com/chromium/src/+/775aa60705..42e64efbfe

No dependencies changed.
No update to Clang.

TBR=
BUG=None

Review-Url: https://codereview.webrtc.org/2728283002
Cr-Commit-Position: refs/heads/master@{#17042}
diff --git a/DEPS b/DEPS
index e64a2f2..02c52db 100644
--- a/DEPS
+++ b/DEPS
@@ -2,7 +2,7 @@
 
 vars = {
   'chromium_git': 'https://chromium.googlesource.com',
-  'chromium_revision': '775aa607056fbeeaa5a87494f6d61ffa75d22f36',
+  'chromium_revision': '42e64efbfec73ed99927e1fc666c8838668b1f24',
   'boringssl_git': 'https://boringssl.googlesource.com',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling swarming_client