[4/N] Add DIR_METADATA files to directories under //content

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

R=boliu@chromium.org, dtseng@chromium.org, kbr@chromium.org

Bug: 1113033
Change-Id: Id2c963398829473e034373d3dc7909d325c77c0b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2543695
Auto-Submit: Josip Sokcevic <sokcevic@google.com>
Reviewed-by: Bo <boliu@chromium.org>
Reviewed-by: Kenneth Russell <kbr@chromium.org>
Reviewed-by: David Tseng <dtseng@chromium.org>
Commit-Queue: David Tseng <dtseng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#828501}

content/browser/wake_lock/DIR_METADATA

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

content/browser/wake_lock/OWNERS

-# COMPONENT: Blink>WakeLock
-# TEAM: device-dev@chromium.org

content/browser/web_package/DIR_METADATA

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

content/browser/web_package/OWNERS

@@ -2,6 +2,3 @@ kinuko@chromium.org
 kouhei@chromium.org
 horo@chromium.org
 ksakamoto@chromium.org
-
-# TEAM: loading-dev@chromium.org
-# COMPONENT: Blink>Loader

content/browser/webauth/DIR_METADATA

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

content/browser/webauth/OWNERS

@@ -3,6 +3,3 @@ mkwst@chromium.org
 
 per-file *_mojom_traits*.*=set noparent
 per-file *_mojom_traits*.*=file://ipc/SECURITY_OWNERS
-
-# TEAM: identity-dev@chromium.org
-# COMPONENT: Blink>WebAuthentication

content/browser/webid/DIR_METADATA

+monorail {
+  component: "Blink>Identity>WebID"
+}

content/browser/webid/OWNERS

@@ -2,5 +2,3 @@
 kenrb@chromium.org
 majidvp@chromium.org
 goto@chromium.org
-
-# COMPONENT: Blink>Identity>WebID

content/browser/webrtc/DIR_METADATA

+monorail {
+  component: "Blink>WebRTC"
+}

content/browser/webrtc/OWNERS

@@ -5,5 +5,3 @@ tommi@chromium.org
 chfremer@chromium.org
 emircan@chromium.org
 mcasas@chromium.org
-
-# COMPONENT: Blink>WebRTC

content/browser/websockets/DIR_METADATA

+monorail {
+  component: "Blink>Network>WebSockets"
+}
+team_email: "blink-network-dev@chromium.org"

content/browser/websockets/OWNERS

 ricea@chromium.org
 yhirano@chromium.org
-
-# TEAM: blink-network-dev@chromium.org
-# COMPONENT: Blink>Network>WebSockets

content/browser/webui/DIR_METADATA

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

content/browser/webui/OWNERS

 dpapad@chromium.org
 groby@chromium.org
 tommycli@chromium.org
-
-# COMPONENT: UI>Browser>WebUI

content/browser/worker_host/DIR_METADATA

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

content/browser/worker_host/OWNERS

 falken@chromium.org
 horo@chromium.org
 nhiroki@chromium.org
-
-# TEAM: worker-dev@chromium.org
-# COMPONENT: Blink>Workers

content/browser/xr/DIR_METADATA

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

content/browser/xr/OWNERS

@@ -3,6 +3,3 @@ klausw@chromium.org
 
 # Browser Test-related.
 bsheedy@chromium.org
-
-# TEAM: xr-dev@chromium.org
-# COMPONENT: Internals>XR

content/browser/zygote_host/DIR_METADATA

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

content/browser/zygote_host/OWNERS

 file://content/zygote/OWNERS
-
-# TEAM: security-dev@chromium.org
-# COMPONENT: Internals>Sandbox

content/gpu/DIR_METADATA

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

content/gpu/OWNERS

@@ -6,5 +6,3 @@ per-file browser_exposed_gpu_interfaces.*=set noparent
 per-file browser_exposed_gpu_interfaces.*=file://ipc/SECURITY_OWNERS
 per-file gpu_child_thread_receiver_bindings.*=set noparent
 per-file gpu_child_thread_receiver_bindings.*=file://ipc/SECURITY_OWNERS
-
-# COMPONENT: Internals>GPU>Internals

content/public/android/java/src/org/chromium/content/browser/sms/DIR_METADATA

+monorail {
+  component: "Blink>WebOTP"
+}
+team_email: "web-identity@google.com"

content/public/android/java/src/org/chromium/content/browser/sms/OWNERS

 file://content/browser/sms/OWNERS
-
-# TEAM: web-identity@google.com
-# COMPONENT: Blink>WebOTP

content/public/android/javatests/src/org/chromium/content/browser/sms/DIR_METADATA

+monorail {
+  component: "Blink>WebOTP"
+}
+team_email: "web-identity@google.com"

content/public/android/javatests/src/org/chromium/content/browser/sms/OWNERS

 file://content/browser/sms/OWNERS
-
-# TEAM: web-identity@google.com
-# COMPONENT: Blink>WebOTP

content/renderer/accessibility/DIR_METADATA

+monorail {
+  component: "UI>Accessibility"
+}
+team_email: "chromium-accessibility@chromium.org"

content/renderer/accessibility/OWNERS

 file://ui/accessibility/OWNERS
-
-# TEAM: chromium-accessibility@chromium.org
-# COMPONENT: UI>Accessibility

content/renderer/compositor/DIR_METADATA

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

content/renderer/compositor/OWNERS

@@ -4,5 +4,3 @@ vmpstr@chromium.org
 
 # For surface synchronization
 jonross@chromium.org
-
-# COMPONENT: Internals>Compositing