Add //third_party/sqlite to dirs_to_snapshot, remove net_sql.patch

third_party/sqlite/src/test/rdonly.test

Index: third_party/sqlite/src/test/rdonly.test
diff --git a/third_party/sqlite/src/test/rdonly.test b/third_party/sqlite/src/test/rdonly.test
index bf19597871ac4dc07dd9d21bb3746f6e9ca14447..938cc7884c6e584a7157da77f2155b496862a4fc 100644
--- a/third_party/sqlite/src/test/rdonly.test
+++ b/third_party/sqlite/src/test/rdonly.test
@@ -32,6 +32,9 @@ do_test rdonly-1.1 {
     SELECT * FROM t1;
   }
 } {1}
+do_test rdonly-1.1.1 {
+  sqlite3_db_readonly db main
+} {0}
 
 # Changes the write version from 1 to 3.  Verify that the database
 # can be read but not written.
@@ -47,6 +50,9 @@ do_test rdonly-1.3 {
     SELECT * FROM t1;
   }
 } {1}
+do_test rdonly-1.3.1 {
+  sqlite3_db_readonly db main
+} {1}
 do_test rdonly-1.4 {
   catchsql {
     INSERT INTO t1 VALUES(2)