Add DIR_METADATA files to //components/embedder_support

Generate DIR_METADATA files and remove metatada from OWNERS files for
//components/embedder_support

Bug: 1113033
Change-Id: Ic5f956d9dfc0adb6dba6d7d74f858c86cd3ba03b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2542771Reviewed-by: Colin Blundell <blundell@chromium.org>
Commit-Queue: Norman Rosas <normando@google.com>
Cr-Commit-Position: refs/heads/master@{#828322}

components/embedder_support/android/DIR_METADATA

+monorail {
+  component: "Internals>Core"
+}
+os: ANDROID
\ No newline at end of file

components/embedder_support/android/OWNERS

 boliu@chromium.org
 jinsukkim@chromium.org
 tedchoc@chromium.org
-
-# COMPONENT: Internals>Core
-# OS: Android

components/embedder_support/android/java/src/org/chromium/components/embedder_support/delegate/DIR_METADATA

+monorail {
+  component: "Internals>Core"
+}
\ No newline at end of file

components/embedder_support/android/java/src/org/chromium/components/embedder_support/delegate/OWNERS

 boliu@chromium.org
 tedchoc@chromium.org
-
-# COMPONENT: Internals>Core

components/embedder_support/android/metrics/DIR_METADATA

+monorail {
+  component: "Internals>Metrics"
+}
+team_email: "chromium-dev@chromium.org"
\ No newline at end of file

components/embedder_support/android/metrics/OWNERS

 file://base/metrics/OWNERS
 
 ntfschr@chromium.org
-
-# COMPONENT: Internals>Metrics
-# TEAM: chromium-dev@chromium.org

components/embedder_support/origin_trials/DIR_METADATA

+monorail {
+  component: "Internals>OriginTrials"
+}
+team_email: "experimentation-dev@chromium.org"
\ No newline at end of file

components/embedder_support/origin_trials/OWNERS

-file://third_party/blink/common/origin_trials/OWNERS
-# COMPONENT: Internals>OriginTrials
-# TEAM: experimentation-dev@chromium.org
+file://third_party/blink/common/origin_trials/OWNERS
\ No newline at end of file