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

third_party/sqlite/src/test/rdonly.test

 # 2007 April 24
 #
 # The author disclaims copyright to this source code.  In place of
 # a legal notice, here is a blessing:
 #
 #    May you do good and not evil.
 #    May you find forgiveness for yourself and forgive others.
 #    May you share freely, never taking more than you give.
 #
 #***********************************************************************
@@ skipping 14 matching lines @@
 
 # Create a database.
 #
 do_test rdonly-1.1 {
   execsql {
     CREATE TABLE t1(x);
     INSERT INTO t1 VALUES(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.
 #
 do_test rdonly-1.2 {
   db close
   hexio_get_int [hexio_read test.db 18 1]
 } 1
 do_test rdonly-1.3 {
   hexio_write test.db 18 03
   sqlite3 db test.db
   execsql {
     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)
   }
 } {1 {attempt to write a readonly database}}
 
 # Change the write version back to 1.  Verify that the database
 # is read-write again.
 #
 do_test rdonly-1.5 {
@@ skipping 15 matching lines @@
 ifcapable wal { set ro_version 03 }
 do_test rdonly-1.6 {
   hexio_write test.db 18 $ro_version     ; # write-version
   hexio_write test.db 24 11223344        ; # change-counter
   catchsql {
     INSERT INTO t1 VALUES(2);
   }
 } {1 {attempt to write a readonly database}}
 
 finish_test