[VCN20] Change requestBackgroundNetwork argument order

Test: atest FrameworksNetTests FrameworksVcnTests
Fix: 185215095
Merged-In: Id281678fe85ce0894b0e92e11c0283d4d1b4ecdb
Change-Id: Id281678fe85ce0894b0e92e11c0283d4d1b4ecdb
  (cherry-picked from ag/14198667)

framework/src/android/net/ConnectivityManager.java

@@ -5307,10 +5307,10 @@ public class ConnectivityManager {
      * {@link #unregisterNetworkCallback(NetworkCallback)}.
      *
      * @param request {@link NetworkRequest} describing this request.
-     * @param handler {@link Handler} to specify the thread upon which the callback will be invoked.
-     *                If null, the callback is invoked on the default internal Handler.
      * @param networkCallback The {@link NetworkCallback} to be utilized for this request. Note
      *                        the callback must not be shared - it uniquely specifies this request.
+     * @param handler {@link Handler} to specify the thread upon which the callback will be invoked.
+     *                If null, the callback is invoked on the default internal Handler.
      * @throws IllegalArgumentException if {@code request} contains invalid network capabilities.
      * @throws SecurityException if missing the appropriate permissions.
      * @throws RuntimeException if the app already has too many callbacks registered.
@@ -5325,7 +5325,8 @@ public class ConnectivityManager {
             NetworkStack.PERMISSION_MAINLINE_NETWORK_STACK
     })
     public void requestBackgroundNetwork(@NonNull NetworkRequest request,
-            @NonNull Handler handler, @NonNull NetworkCallback networkCallback) {
+            @NonNull NetworkCallback networkCallback,
+            @SuppressLint("ListenerLast") @NonNull Handler handler) {
         final NetworkCapabilities nc = request.networkCapabilities;
         sendRequestForNetwork(nc, networkCallback, 0, BACKGROUND_REQUEST,
                 TYPE_NONE, new CallbackHandler(handler));