[Provider Model] Internet Panel - Airplane mode is on

- Add "Airplane mode is on" to sub-title
  - Set the header layout to CENTER_HORIZONTAL if it's no icon

- Hide "Settings" button

- Screenshot
  https://screenshot.googleplex.com/6m5dFVZu7ar4nKW

Bug: 178717651
Test: manual test
atest InternetConnectivityPanelTest \
      PanelFragmentTest \
      ProviderModelSliceTest

Change-Id: I899a817fd99415e9cad608aa4deac1e45365696a

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

@@ -26,7 +26,6 @@ import android.content.Context;
 import android.content.Intent;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
-import android.provider.Settings;
 import android.telephony.SubscriptionManager;
 import android.util.Log;
 
@@ -87,9 +86,6 @@ public class ProviderModelSlice extends WifiSlice {
         final ListBuilder listBuilder = mHelper.createListBuilder(getUri());
         if (mHelper.isAirplaneModeEnabled() && !mWifiManager.isWifiEnabled()) {
             log("Airplane mode is enabled.");
-            listBuilder.setHeader(mHelper.createHeader(Settings.ACTION_AIRPLANE_MODE_SETTINGS));
-            listBuilder.addGridRow(mHelper.createMessageGridRow(R.string.condition_airplane_title,
-                    Settings.ACTION_AIRPLANE_MODE_SETTINGS));
             return listBuilder.build();
         }
 
@@ -195,10 +191,14 @@ public class ProviderModelSlice extends WifiSlice {
             MobileNetworkUtils.setMobileDataEnabled(mContext, defaultSubId, newState,
                     false /* disableOtherSubscriptions */);
         }
-        doCarrierNetworkAction(isToggleAction, newState);
+
+        final boolean isDataEnabled =
+                isToggleAction ? newState : MobileNetworkUtils.isMobileDataEnabled(mContext);
+        doCarrierNetworkAction(isToggleAction, isDataEnabled);
     }
 
-    private void doCarrierNetworkAction(boolean isToggleAction, boolean isDataEnabled) {
+    @VisibleForTesting
+    void doCarrierNetworkAction(boolean isToggleAction, boolean isDataEnabled) {
         final NetworkProviderWorker worker = getWorker();
         if (worker == null) {
             return;
@@ -209,7 +209,7 @@ public class ProviderModelSlice extends WifiSlice {
             return;
         }
 
-        if (MobileNetworkUtils.isMobileDataEnabled(mContext)) {
+        if (isDataEnabled) {
             worker.connectCarrierNetwork();
         }
     }