[NaCl SDK] Switch ppapi_simple to C library

native_client_sdk/src/libraries/ppapi_simple/ps_main.cc

-// 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.
-
-#ifdef __native_client__
-#include <irt.h>
-#include <irt_ppapi.h>
-#endif
-
-#include <stdio.h>
-
-#include "nacl_io/nacl_io.h"
-#include "ppapi/c/pp_instance.h"
-#include "ppapi/c/pp_module.h"
-#include "ppapi_simple/ps_instance.h"
-#include "ppapi_simple/ps_main.h"
-
-extern "C" int PpapiPluginMain();
-
-void* PSMainCreate(PP_Instance inst, PSMainFunc_t entry_point) {
-  PSInstance* pInst = new PSInstance(inst);
-  pInst->SetMain(entry_point);
-  return pInst;
-}
-
-/**
- * main entry point for ppapi_simple applications.  This differs from the
- * regular ppapi main entry point in that it will fall back to running
- * the user's main code in the case that the PPAPI hooks are not found.
- * This allows ppapi_simple binary to run within chrome (with PPAPI present)
- * and also under sel_ldr (no PPAPI).
- */
-#ifdef __native_client__
-extern "C" int __nacl_main(int argc, char* argv[]) {
-  struct nacl_irt_ppapihook hooks;
-  if (nacl_interface_query(NACL_IRT_PPAPIHOOK_v0_1, &hooks, sizeof(hooks)) ==
-      sizeof(hooks)) {
-    return PpapiPluginMain();
-  }
-#else
-int main(int argc, char* argv[]) {
-#endif
-  // By default, or if not running in the browser we simply run the main
-  // entry point directly, on the main thread.
-  int rtn = nacl_io_init();
-  if (rtn != 0)
-    return rtn;
-  rtn = PSUserMainGet()(argc, argv);
-  nacl_io_uninit();
-  return rtn;
-}