Refactor migrateGridIfNeeded to pass the grid states and make it easier for unit testing

No-op change

Bug: 325286145
Flag: NA
Test: compiling
Change-Id: I703c08059b81e20111c17a142dc54335f18a5a87

src/com/android/launcher3/model/GridSizeMigrationUtil.java

@@ -105,12 +105,10 @@ public class GridSizeMigrationUtil {
      */
     public static boolean migrateGridIfNeeded(
             @NonNull Context context,
-            @NonNull InvariantDeviceProfile idp,
+            @NonNull DeviceGridState srcDeviceState,
+            @NonNull DeviceGridState destDeviceState,
             @NonNull DatabaseHelper target,
             @NonNull SQLiteDatabase source) {
-
-        DeviceGridState srcDeviceState = new DeviceGridState(context);
-        DeviceGridState destDeviceState = new DeviceGridState(idp);
         if (!needsToMigrate(srcDeviceState, destDeviceState)) {
             return true;
         }