Fix Database crash between v10 versions (#3345)

Author: MortimerGoro

app/src/common/shared/org/mozilla/vrbrowser/db/AppDatabase.java

@@ -13,7 +13,7 @@
 
 import org.mozilla.vrbrowser.AppExecutors;
 
-@Database(entities = {SitePermission.class}, version = 3)
+@Database(entities = {SitePermission.class}, version = 4)
 public abstract class AppDatabase extends RoomDatabase {
 
     private static final String DATABASE_NAME = "app";
@@ -38,7 +38,7 @@ public static AppDatabase getAppDatabase(Context context, final AppExecutors exe
     @NonNull
     private static AppDatabase buildDatabase(final @NonNull Context appContext, final @NonNull AppExecutors executors) {
         return Room.databaseBuilder(appContext, AppDatabase.class, DATABASE_NAME)
-                .addMigrations(MIGRATION_1_2, MIGRATION_2_3)
+                .addMigrations(MIGRATION_1_2, MIGRATION_2_4)
                 .addCallback(new Callback() {
                     @Override
                     public void onCreate(@NonNull SupportSQLiteDatabase db) {
@@ -87,7 +87,8 @@ public void migrate(SupportSQLiteDatabase database) {
         }
     };
 
-    private static final Migration MIGRATION_2_3 = new Migration(2, 3) {
+    // Note: We skip version 3 as a workaround to fix a crash between v10 releases
+    private static final Migration MIGRATION_2_4 = new Migration(2, 4) {
         @Override
         public void migrate(SupportSQLiteDatabase database) {
             database.execSQL("ALTER TABLE SitePermission ADD COLUMN principal TEXT NOT NULL DEFAULT ''");