Split out the ethernet API surface and use framework-connectivity-t

Ethernet framework and service source code is going to be moved to
Connectivity mainline module, this CL contains below corresponding
changes to adapt the migration in f/b side:

1. Split out ethernet module-lib APIs to Connectivity module.
   Add the ethernet resource filegroup to tiramisu-updatable-sources
   filegroup as well, build them together. Also update the module-lib
   and system api txt to reflect the APIs change. Remove the hidden
   APIs which are moved to Connectivity module. This removal fixes the
   api inconsistent issue with Tethering/apex/hidden/.

2. Remove EthernetService from SystemServer which will be registered
   from ConnectivityServiceInitializer.

3. Replace the BackgroundThread class(imported from f/b/core/java)
   with the one in the modules-utils-backgroundthread lib, which is
   visible to Connectivity module.

Bug: 210586283
Test: m
Test: atest FrameworksNetTests EthernetServiceTests
Change-Id: I1956848d3248cc56e9841d221e5e4c160bed65a4

1 files changed, 0 insertions, 11 deletions

diff --git a/core/java/android/app/SystemServiceRegistry.java b/core/java/android/app/SystemServiceRegistry.java
index 58db93c123bb..bf6f63414574 100644
--- a/core/java/android/app/SystemServiceRegistry.java
+++ b/core/java/android/app/SystemServiceRegistry.java
@@ -138,8 +138,6 @@ import android.media.tv.tunerresourcemanager.TunerResourceManager;
 import android.nearby.NearbyFrameworkInitializer;
 import android.net.ConnectivityFrameworkInitializer;
 import android.net.ConnectivityFrameworkInitializerTiramisu;
-import android.net.EthernetManager;
-import android.net.IEthernetManager;
 import android.net.INetworkPolicyManager;
 import android.net.IPacProxyManager;
 import android.net.IVpnManager;
@@ -789,15 +787,6 @@ public final class SystemServiceRegistry {
                 return new LowpanManager(ctx.getOuterContext(), service);
             }});
 
-        registerService(Context.ETHERNET_SERVICE, EthernetManager.class,
-                new CachedServiceFetcher<EthernetManager>() {
-            @Override
-            public EthernetManager createService(ContextImpl ctx) throws ServiceNotFoundException {
-                IBinder b = ServiceManager.getServiceOrThrow(Context.ETHERNET_SERVICE);
-                IEthernetManager service = IEthernetManager.Stub.asInterface(b);
-                return new EthernetManager(ctx.getOuterContext(), service);
-            }});
-
         registerService(Context.WIFI_NL80211_SERVICE, WifiNl80211Manager.class,
                 new CachedServiceFetcher<WifiNl80211Manager>() {
                     @Override