Add DIR_METADATA files to //components/gcm_driver

Generate DIR_METADATA files and remove metadata from OWNERS files for
//components/gcm_driver

Bug: 1113033
Change-Id: Ief65b636329b792885a00dd81201361da28e0ee1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2543585Reviewed-by: Dmitry Titov <dimich@chromium.org>
Commit-Queue: Norman Rosas <normando@google.com>
Cr-Commit-Position: refs/heads/master@{#831922}

components/gcm_driver/DIR_METADATA

+monorail {
+  component: "Services>CloudMessaging"
+}
+team_email: "platform-capabilities@chromium.org"
\ No newline at end of file

components/gcm_driver/OWNERS

@@ -2,6 +2,3 @@ dimich@chromium.org
 fgorski@chromium.org
 jianli@chromium.org
 peter@chromium.org
-
-# COMPONENT: Services>CloudMessaging
-# TEAM: platform-capabilities@chromium.org

components/gcm_driver/android/DIR_METADATA

+monorail {
+  component: "Services>CloudMessaging"
+}
\ No newline at end of file

components/gcm_driver/android/OWNERS

 johnme@chromium.org
 mvanouwerkerk@chromium.org
-
-# COMPONENT: Services>CloudMessaging