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: Ia4011889cd8075236bf80a4bda1e1f19c8c6b608
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1700853Reviewed-by: Ben Wagner <bungeman@chromium.org>
Reviewed-by: Peter Beverloo <peter@chromium.org>
Reviewed-by: Gayane Petrosyan <gayane@chromium.org>
Commit-Queue: Ben Wagner <bungeman@chromium.org>
Auto-Submit: Eric Foo <efoo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#681806}

chrome/browser/background_sync/OWNERS

@@ -7,3 +7,4 @@ rayankans@chromium.org
 per-file *permission_context*=file://chrome/browser/permissions/PERMISSIONS_OWNERS
 
 # COMPONENT: Blink>BackgroundSync
+# TEAM: platform-capabilities@chromium.org

chrome/browser/search/OWNERS

 file://components/search/OWNERS
 
-per-file *source*=fserb@chromium.org
\ No newline at end of file
+per-file *source*=fserb@chromium.org
+
+# COMPONENT: UI>Browser>NewTabPage
+# TEAM: ntp-dev@chromium.org

third_party/expat/OWNERS

 bungeman@chromium.org
 dcheng@chromium.org
+# COMPONENT: Blink>XML
+# TEAM: skia-discuss@googlegroups.com

third_party/freetype/OWNERS

 bungeman@chromium.org
 drott@chromium.org
+# COMPONENT: Blink>Fonts