[IT4.6] Unbundle NMS out from ConnectivityManager

ConnectivityService is no longer to update idle timer to NMS but
send to INetd directly after this change. Replace the API
implementation in ConnectivityManager to refer into
ConnectivityService instead of NetworkManagementService to remove
the dependency between CM and NMS for ConnectivityService mainline.

Bug: 170598012
Test: atest FrameworksNetTests
Change-Id: If0ac9a6427dba5a732a15b5d7ca1351b71b07b7b

framework/src/android/net/ConnectivityManager.java

@@ -50,7 +50,6 @@ import android.os.Bundle;
 import android.os.Handler;
 import android.os.IBinder;
 import android.os.INetworkActivityListener;
-import android.os.INetworkManagementService;
 import android.os.Looper;
 import android.os.Message;
 import android.os.Messenger;
@@ -835,7 +834,6 @@ public class ConnectivityManager {
 
     private final Context mContext;
 
-    private INetworkManagementService mNMService;
     private INetworkPolicyManager mNPManager;
     private final TetheringManager mTetheringManager;
 
@@ -2211,17 +2209,6 @@ public class ConnectivityManager {
         void onNetworkActive();
     }
 
-    private INetworkManagementService getNetworkManagementService() {
-        synchronized (this) {
-            if (mNMService != null) {
-                return mNMService;
-            }
-            IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
-            mNMService = INetworkManagementService.Stub.asInterface(b);
-            return mNMService;
-        }
-    }
-
     private final ArrayMap<OnNetworkActiveListener, INetworkActivityListener>
             mNetworkActivityListeners = new ArrayMap<>();
 
@@ -2246,7 +2233,7 @@ public class ConnectivityManager {
         };
 
         try {
-            getNetworkManagementService().registerNetworkActivityListener(rl);
+            mService.registerNetworkActivityListener(rl);
             mNetworkActivityListeners.put(l, rl);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
@@ -2263,7 +2250,7 @@ public class ConnectivityManager {
         INetworkActivityListener rl = mNetworkActivityListeners.get(l);
         Preconditions.checkArgument(rl != null, "Listener was not registered.");
         try {
-            getNetworkManagementService().unregisterNetworkActivityListener(rl);
+            mService.registerNetworkActivityListener(rl);
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }
@@ -2279,7 +2266,7 @@ public class ConnectivityManager {
      */
     public boolean isDefaultNetworkActive() {
         try {
-            return getNetworkManagementService().isNetworkActive();
+            return mService.isDefaultNetworkActive();
         } catch (RemoteException e) {
             throw e.rethrowFromSystemServer();
         }