Add support for simple run of "main"

native_client_sdk/src/libraries/ppapi_main/ppapi_main.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PPAPI_MAIN_PPAPI_MAIN_H_
 #define PPAPI_MAIN_PPAPI_MAIN_H_
 
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_module.h"
 #include "utils/macros.h"
@@ skipping 12 matching lines @@
 
 // Provided by library for basic instance types
 void* PPAPI_CreateInstance(PP_Instance inst, const char *args[]);
 void* PPAPI_CreateInstance2D(PP_Instance inst, const char *args[]);
 void* PPAPI_CreateInstance3D(PP_Instance inst, const char *args[]);
 
 EXTERN_C_END
 
 #define PPAPI_MAIN_DEFAULT_ARGS       \
   {                                   \
-    "PM_STDIN", "/dev/tty",           \
+    "PM_STDIN", "/dev/null",          \
     "PM_STDIO", "/dev/console0",      \
     "PM_STDERR", "/dev/console3",     \
     NULL, NULL                        \
   }
 
 
 #define PPAPI_MAIN_USE(factory, args)                         \
 void* UserCreateInstance(PP_Instance inst) {                  \
   static const char *params[] = args;                         \
   return factory(inst, params);                               \
 }
 
 #define PPAPI_MAIN_WITH_DEFAULT_ARGS \
   PPAPI_MAIN_USE(PPAPI_CreateInstance, PPAPI_MAIN_DEFAULT_ARGS)
 
 #define PPAPI_MAIN_WITH_ARGS(args) \
   PPAPI_MAIN_USE(PPAPI_CreateInstance, args)
 
 
 #endif  // PPAPI_MAIN_PPAPI_MAIN_H_