[chromecast] Add DIR_METADATA files.

Generate DIR_METADATA files
and remove metadata from OWNERS files
for //chromecast.

Bug: 1113033
Change-Id: Ifa61957df0169b570e1e5378f7efb494a8bd3a81
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2441120Reviewed-by: Daniel Nicoara <dnicoara@chromium.org>
Commit-Queue: Norman Rosas <normando@google.com>
Cr-Commit-Position: refs/heads/master@{#814519}

chromecast/DIR_METADATA

+monorail {
+  component: "Chromecast"
+}

chromecast/OWNERS

@@ -10,5 +10,3 @@ per-file *.java=file://chromecast/android/OWNERS
 alexst@chromium.org
 dnicoara@chromium.org
 spang@chromium.org
-
-# COMPONENT: Chromecast

chromecast/android/DIR_METADATA

+monorail {
+  component: "Chromecast"
+}

chromecast/android/OWNERS

 sanfin@chromium.org
 
 per-file lint-*.xml=*
-
-# COMPONENT: Chromecast

chromecast/app/android/DIR_METADATA

+monorail {
+  component: "Chromecast"
+}

chromecast/app/android/OWNERS

 file://chromecast/android/OWNERS
-
-# COMPONENT: Chromecast

chromecast/base/android/DIR_METADATA

+monorail {
+  component: "Chromecast"
+}

chromecast/base/android/OWNERS

 file://chromecast/android/OWNERS
-
-# COMPONENT: Chromecast

chromecast/base/java/DIR_METADATA

+monorail {
+  component: "Chromecast"
+}

chromecast/base/java/OWNERS

 sanfin@chromium.org
-
-# COMPONENT: Chromecast

chromecast/browser/android/DIR_METADATA

+monorail {
+  component: "Chromecast"
+}

chromecast/browser/android/OWNERS

 sanfin@chromium.org
-
-# COMPONENT: Chromecast

chromecast/browser/metrics/DIR_METADATA

+monorail {
+  component: "Internals>Metrics"
+}

chromecast/browser/metrics/OWNERS

 # base/metrics OWNERS for review of Chromecast metrics code
 file://base/metrics/OWNERS
-
-# COMPONENT: Internals>Metrics

chromecast/common/extensions_api/DIR_METADATA

+monorail {
+  component: "Platform>Extensions"
+}

chromecast/common/extensions_api/OWNERS

@@ -2,4 +2,3 @@ per-file *_messages.cc=set noparent
 per-file *_messages.cc=file://ipc/SECURITY_OWNERS
 per-file *_messages*.h=set noparent
 per-file *_messages*.h=file://ipc/SECURITY_OWNERS
-# COMPONENT: Platform>Extensions

chromecast/media/cdm/DIR_METADATA

+monorail {
+  component: "Internals>Media>Encrypted"
+}

chromecast/media/cdm/OWNERS

-# COMPONENT: Internals>Media>Encrypted