Fixing GridMigrationTask tests

Bug: 62907570
Change-Id: Id165e70930025ccf13a1a105acbdc0fb59ee7e32
diff --git a/tests/src/com/android/launcher3/util/TestLauncherProvider.java b/tests/src/com/android/launcher3/util/TestLauncherProvider.java
index 6ca2121..1d6c18b 100644
--- a/tests/src/com/android/launcher3/util/TestLauncherProvider.java
+++ b/tests/src/com/android/launcher3/util/TestLauncherProvider.java
@@ -1,6 +1,7 @@
 package com.android.launcher3.util;
 
 import android.content.Context;
+import android.database.sqlite.SQLiteDatabase;
 import android.database.sqlite.SQLiteOpenHelper;
 
 import com.android.launcher3.LauncherProvider;
@@ -43,5 +44,8 @@
 
         @Override
         protected void onEmptyDbCreated() { }
+
+        @Override
+        protected void handleOneTimeDataUpgrade(SQLiteDatabase db) { }
     }
 }
\ No newline at end of file