settings command delete by user

bug: 118492733
Test: $ adb shell settings --user 10 put secure autofill_service blah
$ adb shell settings --user 10 get secure autofill_service
blah
$ adb shell settings --user 10 delete secure autofill_service
$ adb shell settings --user 10 get secure autofill_service
null

Change-Id: I771bf8e148898703332ead8162c5f9fe4863ea74
diff --git a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
index e0c4d72..2227642 100644
--- a/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
+++ b/packages/SettingsProvider/src/com/android/providers/settings/SettingsProvider.java
@@ -185,6 +185,8 @@
     private static final Bundle NULL_SETTING_BUNDLE = Bundle.forPair(
             Settings.NameValueTable.VALUE, null);
 
+    public static final String RESULT_ROWS_DELETED = "result_rows_deleted";
+
     // Overlay specified settings whitelisted for Instant Apps
     private static final Set<String> OVERLAY_ALLOWED_GLOBAL_INSTANT_APP_SETTINGS = new ArraySet<>();
     private static final Set<String> OVERLAY_ALLOWED_SYSTEM_INSTANT_APP_SETTINGS = new ArraySet<>();
@@ -460,6 +462,27 @@
                 break;
             }
 
+            case Settings.CALL_METHOD_DELETE_SYSTEM: {
+                int rows = deleteSystemSetting(name, requestingUserId) ? 1 : 0;
+                Bundle result = new Bundle();
+                result.putInt(RESULT_ROWS_DELETED, rows);
+                return result;
+            }
+
+            case Settings.CALL_METHOD_DELETE_SECURE: {
+                int rows = deleteSecureSetting(name, requestingUserId, false) ? 1 : 0;
+                Bundle result = new Bundle();
+                result.putInt(RESULT_ROWS_DELETED, rows);
+                return result;
+            }
+
+            case Settings.CALL_METHOD_DELETE_GLOBAL: {
+                int rows = deleteGlobalSetting(name, requestingUserId, false) ? 1 : 0;
+                Bundle result = new Bundle();
+                result.putInt(RESULT_ROWS_DELETED, rows);
+                return result;
+            }
+
             default: {
                 Slog.w(LOG_TAG, "call() with invalid method: " + method);
             } break;