Roll chromium_revision 159828f..b8ff103 (353696:353988)

Change log: https://chromium.googlesource.com/chromium/src/+log/159828f..b8ff103
Full diff: https://chromium.googlesource.com/chromium/src/+/159828f..b8ff103

No dependencies changed.
No update to Clang.

TBR=
CQ_EXTRA_TRYBOTS=tryserver.webrtc:win_baremetal,mac_baremetal,linux_baremetal

Review URL: https://codereview.webrtc.org/1403913003

Cr-Commit-Position: refs/heads/master@{#10274}
diff --git a/DEPS b/DEPS
index 02c8867..dd7bf5e 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': '159828fc541faca44767e090cdc44545545f6155',
+  'chromium_revision': 'b8ff10300d8a3eed9a7e7713c2ef0606d95a42f2',
 }
 
 # NOTE: Prefer revision numbers to tags for svn deps. Use http rather than