OWNERS files updated with latest COMPONENT and TEAMS.

This is CL is generated by a script. Data is pulled from
review conducted in Q2 2019. See https://tinyurl.com/yxau5sc4
for context.

Bug: 977050
Change-Id: Ida5a058fa81bc1c4ca8a0c40a80cd13e7e9fa5e3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1700906Reviewed-by: Philippe Hamel <hamelphi@chromium.org>
Reviewed-by: Cathy Li <chili@chromium.org>
Commit-Queue: Philippe Hamel <hamelphi@chromium.org>
Auto-Submit: Eric Foo <efoo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#688535}

chrome/renderer/net/OWNERS

@@ -8,3 +8,4 @@ jianli@chromium.org
 file://net/OWNERS
 
 # COMPONENT: Internals>Network
+# TEAM: net-dev@chromium.org

components/assist_ranker/OWNERS

@@ -3,3 +3,4 @@ charleszhao@chromium.org
 hamelphi@chromium.org
 jiameng@chromium.org
 rogerm@chromium.org
+# COMPONENT: UI>ML