sdk: Add ENABLE_TASKBAR setting

Change-Id: I5c3bc00f2c935f815dc822eca755e836abb764f1
diff --git a/sdk/src/java/lineageos/providers/LineageSettings.java b/sdk/src/java/lineageos/providers/LineageSettings.java
index 9297279..f449680 100644
--- a/sdk/src/java/lineageos/providers/LineageSettings.java
+++ b/sdk/src/java/lineageos/providers/LineageSettings.java
@@ -2037,6 +2037,15 @@
                 sBooleanValidator;
 
         /**
+         * Whether to enable taskbar.
+         */
+        public static final String ENABLE_TASKBAR = "enable_taskbar";
+
+        /** @hide */
+        public static final Validator ENABLE_TASKBAR_VALIDATOR =
+                sBooleanValidator;
+
+        /**
          * I can haz more bukkits
          * @hide
          */
@@ -2299,6 +2308,8 @@
                     FORCE_SHOW_NAVBAR_VALIDATOR);
             VALIDATORS.put(CLICK_PARTIAL_SCREENSHOT,
                     CLICK_PARTIAL_SCREENSHOT_VALIDATOR);
+            VALIDATORS.put(ENABLE_TASKBAR,
+                    ENABLE_TASKBAR_VALIDATOR);
             VALIDATORS.put(__MAGICAL_TEST_PASSING_ENABLER,
                     __MAGICAL_TEST_PASSING_ENABLER_VALIDATOR);
         };