Move android.settings.WIFI_SETTINGS action to Internet Settings

- Starting from S, the WiFi Settings is changed to Internet Settings

- Redirect to WiFi Settings if Provider Model disabled

- Don't use FLAG_ACTIVITY_NEW_TASK to avoid Lock Task Mode impacted

Bug: 199364761
Bug: 198740257
Bug: 203191404
Test: manual verified by TestDPC apk (see b/198740257#comment41)
Change-Id: I3c283ef58b37f4d3fe27045f431932a35af55023

src/com/android/settings/network/NetworkProviderSettings.java

@@ -19,6 +19,8 @@ package com.android.settings.network;
 import static android.net.wifi.WifiConfiguration.NetworkSelectionStatus.NETWORK_SELECTION_ENABLED;
 import static android.os.UserManager.DISALLOW_CONFIG_WIFI;
 
+import static com.android.settings.Settings.WifiSettingsActivity;
+
 import android.app.Activity;
 import android.app.Dialog;
 import android.app.settings.SettingsEnums;
@@ -277,6 +279,17 @@ public class NetworkProviderSettings extends RestrictedSettingsFragment
     @Override
     public void onCreate(Bundle icicle) {
         super.onCreate(icicle);
+        if (!FeatureFlagUtils.isEnabled(getContext(), FeatureFlagUtils.SETTINGS_PROVIDER_MODEL)) {
+            final Intent intent = new Intent(getContext(), WifiSettingsActivity.class);
+            final Bundle extras = getActivity().getIntent().getExtras();
+            if (extras != null) {
+                intent.putExtras(extras);
+            }
+            getContext().startActivity(intent);
+            finish();
+            return;
+        }
+
         mAirplaneModeEnabler = new AirplaneModeEnabler(getContext(), this);
 
         // TODO(b/37429702): Add animations and preference comparator back after initial screen is
@@ -464,7 +477,9 @@ public class NetworkProviderSettings extends RestrictedSettingsFragment
 
     @Override
     public void onDestroy() {
-        mAirplaneModeEnabler.close();
+        if (mAirplaneModeEnabler != null) {
+            mAirplaneModeEnabler.close();
+        }
         super.onDestroy();
     }