Migrating to android-x

Change-Id: I9a774152d13a541e8496dd84f2469bfed407f86d
diff --git a/src/com/android/launcher3/BaseActivity.java b/src/com/android/launcher3/BaseActivity.java
index 6c82e63..2ec7e01 100644
--- a/src/com/android/launcher3/BaseActivity.java
+++ b/src/com/android/launcher3/BaseActivity.java
@@ -25,7 +25,6 @@
 import android.content.ContextWrapper;
 import android.content.Intent;
 import android.content.res.Configuration;
-import android.support.annotation.IntDef;
 import android.view.ContextThemeWrapper;
 import android.view.View.AccessibilityDelegate;
 
@@ -41,6 +40,8 @@
 import java.lang.annotation.Retention;
 import java.util.ArrayList;
 
+import androidx.annotation.IntDef;
+
 public abstract class BaseActivity extends Activity implements UserEventDelegate{
 
     public static final int INVISIBLE_BY_STATE_HANDLER = 1 << 0;