Add COMPONENT for //services/net

Useful for binary size attribution

Change-Id: Ic17fe16c30e3a09995ea8732cabbf9a6849c93cf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1529125
Reviewed-by: Matt Menke <mmenke@chromium.org>
Commit-Queue: Matt Menke <mmenke@chromium.org>
Auto-Submit: Andrew Grieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/master@{#641732}
diff --git a/services/network/OWNERS b/services/network/OWNERS
index 16c2dba..07a1ddb 100644
--- a/services/network/OWNERS
+++ b/services/network/OWNERS
@@ -28,3 +28,5 @@
 per-file network_sandbox_win.*=file://sandbox/win/OWNERS
 
 per-file resource_scheduler*=tbansal@chromium.org
+
+# COMPONENT: Internals>Services>Network