nfc(api): Add return status for pause/resume Polling APIs

Bug: 375983875
Test: TH

Change-Id: Ie56ef44561cdcc617ba1aeeb8970ccad1b0c079d
diff --git a/nfc/api/system-current.txt b/nfc/api/system-current.txt
index 72447b1..c5b22ac 100644
--- a/nfc/api/system-current.txt
+++ b/nfc/api/system-current.txt
@@ -65,9 +65,9 @@
     method @FlaggedApi("android.nfc.nfc_oem_extension") @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public boolean isTagPresent();
     method @FlaggedApi("android.nfc.nfc_oem_extension") @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public void maybeTriggerFirmwareUpdate();
     method @FlaggedApi("android.nfc.nfc_oem_extension") @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public void overwriteRoutingTable(int, int, int, int);
-    method @FlaggedApi("android.nfc.nfc_oem_extension") @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public void pausePolling(int);
+    method @FlaggedApi("android.nfc.nfc_oem_extension") @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public int pausePolling(int);
     method @FlaggedApi("android.nfc.nfc_oem_extension") @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public void registerCallback(@NonNull java.util.concurrent.Executor, @NonNull android.nfc.NfcOemExtension.Callback);
-    method @FlaggedApi("android.nfc.nfc_oem_extension") @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public void resumePolling();
+    method @FlaggedApi("android.nfc.nfc_oem_extension") @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public int resumePolling();
     method @FlaggedApi("android.nfc.nfc_oem_extension") @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public void setAutoChangeEnabled(boolean);
     method @FlaggedApi("android.nfc.nfc_oem_extension") @RequiresPermission(android.Manifest.permission.NFC_SET_CONTROLLER_ALWAYS_ON) public void setControllerAlwaysOnMode(int);
     method @FlaggedApi("android.nfc.nfc_oem_extension") @RequiresPermission(android.Manifest.permission.WRITE_SECURE_SETTINGS) public void synchronizeScreenState();
@@ -83,6 +83,8 @@
     field public static final int HCE_ACTIVATE = 1; // 0x1
     field public static final int HCE_DATA_TRANSFERRED = 2; // 0x2
     field public static final int HCE_DEACTIVATE = 3; // 0x3
+    field public static final int POLLING_STATE_CHANGE_ALREADY_IN_REQUESTED_STATE = 2; // 0x2
+    field public static final int POLLING_STATE_CHANGE_SUCCEEDED = 1; // 0x1
     field public static final int STATUS_OK = 0; // 0x0
     field public static final int STATUS_UNKNOWN_ERROR = 1; // 0x1
   }