Migrating test/ppapi_file_system to messaging

tests/ppapi_test_lib/test_interface.h

 // Copyright (c) 2011 The Native Client Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // Functions and constants for test registration and setup.
 //
 // NOTE: These must be implemented by the tester:
 // - SetupTests()
 // - SetupPluginInterfaces()
 //
@@ skipping 37 matching lines @@
 //   const PPP_Bar ppp_bar_interface = { ... };
 //
 //   void SetupPluginInterface() {
 //     RegisterPluginInterface(PPP_BAR_INTERFACE, &ppp_bar_interface);
 //   }
 //
 
 #ifndef NATIVE_CLIENT_TESTS_PPAPI_TEST_PPB_TEMPLATE_TEST_INTERFACE_H
 #define NATIVE_CLIENT_TESTS_PPAPI_TEST_PPB_TEMPLATE_TEST_INTERFACE_H
 
+#include <stdio.h>
 #include <limits>
 
 #include "native_client/src/include/nacl_string.h"
 
 #include "ppapi/c/pp_completion_callback.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_module.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_var.h"
 
@@ skipping 71 matching lines @@
 // 00 - module, 01 - instance, 10 - resource, 11 - var.
 const PP_Instance kNotAnInstance = 0xFFFFF0;
 const PP_Resource kNotAResource = 0xAAAAA0;
 
 // Interface pointers and ids corresponding to this plugin;
 // set at initialization/creation.
 PP_Instance pp_instance();
 PP_Module pp_module();
 
 #endif  // NATIVE_CLIENT_TESTS_PPAPI_TEST_PPB_TEMPLATE_TEST_INTERFACE_H