new SystemAPI for setCarrierDataEnabled

Bug: 116138716
Test: Telephony unit test
Change-Id: I6fba04dab8fd067f49b17afa2a640b7d00092a3f
diff --git a/api/system-current.txt b/api/system-current.txt
index 87a44ce..211e586 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -5486,6 +5486,7 @@
     method public deprecated boolean isVisualVoicemailEnabled(android.telecom.PhoneAccountHandle);
     method public boolean needsOtaServiceProvisioning();
     method public int setAllowedCarriers(int, java.util.List<android.service.carrier.CarrierIdentifier>);
+    method public void setCarrierDataEnabled(boolean);
     method public void setDataActivationState(int);
     method public deprecated void setDataEnabled(int, boolean);
     method public void setDataRoamingEnabled(boolean);
diff --git a/packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CarrierActionUtils.java b/packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CarrierActionUtils.java
index 33cb5964..4518d79 100644
--- a/packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CarrierActionUtils.java
+++ b/packages/CarrierDefaultApp/src/com/android/carrierdefaultapp/CarrierActionUtils.java
@@ -30,7 +30,7 @@
 import android.text.TextUtils;
 import android.util.Log;
 import com.android.internal.telephony.PhoneConstants;
-import com.android.carrierdefaultapp.R;
+
 /**
  * This util class provides common logic for carrier actions
  */
@@ -102,7 +102,7 @@
                 SubscriptionManager.getDefaultVoiceSubscriptionId());
         logd("onDisableAllMeteredApns subId: " + subId);
         final TelephonyManager telephonyMgr = context.getSystemService(TelephonyManager.class);
-        telephonyMgr.carrierActionSetMeteredApnsEnabled(subId, !ENABLE);
+        telephonyMgr.createForSubscriptionId(subId).setCarrierDataEnabled(!ENABLE);
     }
 
     private static void onEnableAllMeteredApns(Intent intent, Context context) {
@@ -110,7 +110,7 @@
                 SubscriptionManager.getDefaultVoiceSubscriptionId());
         logd("onEnableAllMeteredApns subId: " + subId);
         final TelephonyManager telephonyMgr = context.getSystemService(TelephonyManager.class);
-        telephonyMgr.carrierActionSetMeteredApnsEnabled(subId, ENABLE);
+        telephonyMgr.createForSubscriptionId(subId).setCarrierDataEnabled(ENABLE);
     }
 
     private static void onEnableDefaultURLHandler(Context context) {
diff --git a/packages/CarrierDefaultApp/tests/unit/src/com/android/carrierdefaultapp/CarrierDefaultReceiverTest.java b/packages/CarrierDefaultApp/tests/unit/src/com/android/carrierdefaultapp/CarrierDefaultReceiverTest.java
index f9dbcd4..5d84d64 100644
--- a/packages/CarrierDefaultApp/tests/unit/src/com/android/carrierdefaultapp/CarrierDefaultReceiverTest.java
+++ b/packages/CarrierDefaultApp/tests/unit/src/com/android/carrierdefaultapp/CarrierDefaultReceiverTest.java
@@ -104,6 +104,6 @@
         assertNotNull(pendingIntent);
 
         Rlog.d(TAG, "verify carrier action: disable all metered apns");
-        verify(mTelephonyMgr).carrierActionSetMeteredApnsEnabled(eq(subId), eq(false));
+        verify(mTelephonyMgr).setCarrierDataEnabled(eq(false));
     }
 }
diff --git a/telephony/java/android/telephony/TelephonyManager.java b/telephony/java/android/telephony/TelephonyManager.java
index 8f78c34..9e18259 100644
--- a/telephony/java/android/telephony/TelephonyManager.java
+++ b/telephony/java/android/telephony/TelephonyManager.java
@@ -8333,20 +8333,31 @@
     }
 
     /**
-     * Action set from carrier signalling broadcast receivers to enable/disable metered apns
-     * Permissions android.Manifest.permission.MODIFY_PHONE_STATE is required
-     * @param subId the subscription ID that this action applies to.
-     * @param enabled control enable or disable metered apns.
+     * Used to enable or disable carrier data by the system based on carrier signalling or
+     * carrier privileged apps. Different from {@link #setDataEnabled(boolean)} which is linked to
+     * user settings, carrier data on/off won't affect user settings but will bypass the
+     * settings and turns off data internally if set to {@code false}.
+     *
+     * <p>If this object has been created with {@link #createForSubscriptionId}, applies to the
+     * given subId. Otherwise, applies to {@link SubscriptionManager#getDefaultDataSubscriptionId()}
+     *
+     * <p>Requires Permission:
+     * {@link android.Manifest.permission#MODIFY_PHONE_STATE MODIFY_PHONE_STATE}.
+     *
+     * @param enabled control enable or disable carrier data.
      * @hide
      */
-    public void carrierActionSetMeteredApnsEnabled(int subId, boolean enabled) {
+    @SystemApi
+    @RequiresPermission(android.Manifest.permission.MODIFY_PHONE_STATE)
+    public void setCarrierDataEnabled(boolean enabled) {
         try {
             ITelephony service = getITelephony();
             if (service != null) {
-                service.carrierActionSetMeteredApnsEnabled(subId, enabled);
+                service.carrierActionSetMeteredApnsEnabled(
+                        getSubId(SubscriptionManager.getDefaultDataSubscriptionId()), enabled);
             }
         } catch (RemoteException e) {
-            Log.e(TAG, "Error calling ITelephony#carrierActionSetMeteredApnsEnabled", e);
+            Log.e(TAG, "Error calling ITelephony#setCarrierDataEnabled", e);
         }
     }