Roll chromium_revision b77e5bb..cad2987 (359767:359796)

Change log: https://chromium.googlesource.com/chromium/src/+log/b77e5bb..cad2987
Full diff: https://chromium.googlesource.com/chromium/src/+/b77e5bb..cad2987

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/1444223002

Cr-Commit-Position: refs/heads/master@{#10643}
diff --git a/DEPS b/DEPS
index 0a8745b..c46958a 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': 'b77e5bbb09cacac678ca2b1f36a4280d65519cd6',
+  'chromium_revision': 'cad2987b1e2c013f44f9b358de619aa74f32b980',
 }
 
 # NOTE: Prefer revision numbers to tags for svn deps. Use http rather than