Mark connectivity test utilities as module API

The API surface is planned to move to the Connectivity module, meaning
that it will be maintained across multiple Android releases.
This is incompatible with TestApi semantics, which are designed to be
removable across releases. Effectively the APIs become SystemApi, so
mark them as such considering that TestApi is not supported by modules.

Remove the NetworkCapabilities.getCapabilities test API that is not
essential for tests, and mark other APIs as module API.

Test: m
Bug: 174436414
Change-Id: Ic04551a9874b3d756cf5e6c77ceabfc7c85d52a6

core/java/android/net/ConnectivityManager.java

@@ -29,7 +29,6 @@ import android.annotation.SdkConstant;
 import android.annotation.SdkConstant.SdkConstantType;
 import android.annotation.SystemApi;
 import android.annotation.SystemService;
-import android.annotation.TestApi;
 import android.app.PendingIntent;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.content.Context;
@@ -4823,6 +4822,8 @@ public class ConnectivityManager {
     /**
      * Simulates a Data Stall for the specified Network.
      *
+     * <p>This method should only be used for tests.
+     *
      * <p>The caller must be the owner of the specified Network.
      *
      * @param detectionMethod The detection method used to identify the Data Stall.
@@ -4832,7 +4833,7 @@ public class ConnectivityManager {
      * @throws SecurityException if the caller is not the owner of the given network.
      * @hide
      */
-    @TestApi
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     @RequiresPermission(anyOf = {android.Manifest.permission.MANAGE_TEST_NETWORKS,
             android.Manifest.permission.NETWORK_STACK})
     public void simulateDataStall(int detectionMethod, long timestampMillis,

core/java/android/net/NetworkCapabilities.java

@@ -23,7 +23,6 @@ import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.annotation.RequiresPermission;
 import android.annotation.SystemApi;
-import android.annotation.TestApi;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.net.ConnectivityManager.NetworkCallback;
 import android.os.Build;
@@ -576,7 +575,6 @@ public final class NetworkCapabilities implements Parcelable {
      * @hide
      */
     @UnsupportedAppUsage
-    @TestApi
     public @NetCapability int[] getCapabilities() {
         return BitUtils.unpackBits(mNetworkCapabilities);
     }
@@ -821,7 +819,7 @@ public final class NetworkCapabilities implements Parcelable {
      *
      * @hide
      */
-    @TestApi
+    @SystemApi(client = SystemApi.Client.MODULE_LIBRARIES)
     public static final int TRANSPORT_TEST = 7;
 
     /** @hide */