[12/N] Add DIR_METADATA files to directories under //chrome/browser

Generate DIR_METADATA files and remove metadata from OWNERS
files for directories under //chrome/browser.

Bug: 1113033
Change-Id: Id810f3d68fdf7bc52eab805b02c2099e7c42ff14
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2577012
Commit-Queue: Gavin Mak <gavinmak@google.com>
Reviewed-by: Ted Choc <tedchoc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#835262}

chrome/browser/external_protocol/DIR_METADATA

+monorail:  {
+  component: "UI>Browser>WebAppInstalls"
+}

chrome/browser/external_protocol/OWNERS

@@ -2,4 +2,3 @@ benwells@chromium.org
 dominickn@chromium.org
 meacer@chromium.org
 mgiuca@chromium.org
-# COMPONENT: UI>Browser>WebAppInstalls

chrome/browser/favicon/DIR_METADATA

+monorail:  {
+  component: "UI>Browser>History"
+}

chrome/browser/favicon/OWNERS

@@ -4,4 +4,3 @@ sky@chromium.org
 
 # Temporary owner, for refactoring changes only.
 caitkp@chromium.org
-# COMPONENT: UI>Browser>History

chrome/browser/feature_engagement/DIR_METADATA

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

chrome/browser/feature_engagement/OWNERS

@@ -3,5 +3,3 @@ collinbaker@chromium.org
 
 # Backup
 file://components/feature_engagement/OWNERS
-
-# COMPONENT: Internals>FeatureEngagement

chrome/browser/federated_learning/DIR_METADATA

+team_email: "privacy-sandbox-dev@chromium.org"

chrome/browser/federated_learning/OWNERS

 jkarlin@chromium.org
 yaoxia@chromium.org
-
-# TEAM: privacy-sandbox-dev@chromium.org

chrome/browser/feedback/DIR_METADATA

+monorail:  {
+  component: "Platform>Apps>Feedback"
+}

chrome/browser/feedback/OWNERS

 file://components/feedback/OWNERS
-
-# COMPONENT: Platform>Apps>Feedback

chrome/browser/feedback/android/DIR_METADATA

+monorail:  {
+  component: "UI>Browser>Mobile"
+}
+os: ANDROID

chrome/browser/feedback/android/OWNERS

 nyquist@chromium.org
 twellington@chromium.org
-
-# COMPONENT: UI>Browser>Mobile
-# OS: Android

chrome/browser/first_run/DIR_METADATA

+monorail:  {
+  component: "UI>Browser>FirstRun"
+}

chrome/browser/first_run/OWNERS

 cpu@chromium.org
 gab@chromium.org
 grt@chromium.org
-
-# COMPONENT: UI>Browser>FirstRun

chrome/browser/flags/DIR_METADATA

+monorail:  {
+  component: "Internals>Flags"
+}
+team_email: "clank-modularization@chromium.org"
+os: ANDROID

chrome/browser/flags/OWNERS

@@ -6,7 +6,3 @@ twellington@chromium.org
 # changes, use the normal OWNERS rules.
 per-file *ChromeFeatureList.java=*
 per-file *chrome_feature_list.*=*
-
-# TEAM: clank-modularization@chromium.org
-# COMPONENT: Internals>Flags
-# OS: Android

chrome/browser/font_access/DIR_METADATA

+monorail:  {
+  component: "Blink>Storage>FontAccess"
+}
+team_email: "storage-dev@chromium.org"

chrome/browser/font_access/OWNERS

 jsbell@chromium.com
 oyiptong@chromium.org
-
-# TEAM: storage-dev@chromium.org
-# COMPONENT: Blink>Storage>FontAccess

chrome/browser/fullscreen/android/DIR_METADATA

+monorail:  {
+  component: "UI>Browser>Mobile"
+}

chrome/browser/fullscreen/android/OWNERS

@@ -3,5 +3,3 @@ file://chrome/android/OWNERS
 jinsukkim@chromium.org
 mdjones@chromium.org
 twellington@chromium.org
-
-# COMPONENT: UI>Browser>Mobile

chrome/browser/games/DIR_METADATA

+monorail:  {
+  component: "UI>Browser>Joy"
+}

chrome/browser/games/OWNERS

  file://components/games/OWNERS
-
-# COMPONENT: UI>Browser>Joy

chrome/browser/gcm/DIR_METADATA

+monorail:  {
+  component: "Services>CloudMessaging"
+}
+team_email: "platform-capabilities@chromium.org"

chrome/browser/gcm/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 

chrome/browser/generic_sensor/DIR_METADATA

+monorail:  {
+  component: "Blink>Sensor"
+}
+team_email: "device-dev@chromium.org"

chrome/browser/generic_sensor/OWNERS

 file://services/device/generic_sensor/OWNERS
 
 per-file *permission_context*=file://components/permissions/PERMISSIONS_OWNERS
-
-# COMPONENT: Blink>Sensor
-# TEAM: device-dev@chromium.org

chrome/browser/geolocation/DIR_METADATA

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

chrome/browser/geolocation/OWNERS

@@ -3,5 +3,3 @@ raymes@chromium.org
 timvolodine@chromium.org
 
 per-file *permission_context*=file://components/permissions/PERMISSIONS_OWNERS
-
-# COMPONENT: Internals>Permissions

chrome/browser/google/DIR_METADATA

+monorail:  {
+  component: "Internals"
+}
+team_email: "chromium-dev@chromium.org"

chrome/browser/google/OWNERS

 isherman@chromium.org
 pkasting@chromium.org
-
-# COMPONENT: Internals
-# TEAM: chromium-dev@chromium.org