Roll chromium_revision a469250..e99453b (358505:358523)

Change log: https://chromium.googlesource.com/chromium/src/+log/a469250..e99453b
Full diff: https://chromium.googlesource.com/chromium/src/+/a469250..e99453b

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/1419823013

Cr-Commit-Position: refs/heads/master@{#10551}
diff --git a/DEPS b/DEPS
index 579ece2..486b107 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': 'a469250cba6a8535d64b0c96c83346770037e221',
+  'chromium_revision': 'e99453bd606cfba6902d82d1e363826d21b0c6a8',
 }
 
 # NOTE: Prefer revision numbers to tags for svn deps. Use http rather than