[NaCl SDK] Allow ppapi_simple executables to run in both sel_ldr and in chrome.

native_client_sdk/src/tests/nacl_io_socket_test/main.cc

 // Copyright (c) 2013 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.
 
 #include <string>
 
 #include "gtest/gtest.h"
-
-#if defined(SEL_LDR)
-
-int main(int argc, char* argv[]) {
-  ::testing::InitGoogleTest(&argc, argv);
-  return RUN_ALL_TESTS();
-}
-
-#else
-
 #include "ppapi/cpp/instance.h"
 #include "ppapi/cpp/var.h"
 #include "ppapi_simple/ps_main.h"
 
 #if defined(WIN32)
 #include <Windows.h>
 #undef PostMessage
 #endif
 
 class GTestEventListener : public ::testing::EmptyTestEventListener {
@@ skipping 19 matching lines @@
   virtual void OnTestEnd(const ::testing::TestInfo& test_info) {
     std::stringstream msg;
     msg << "end:" << test_info.test_case_name() << "." << test_info.name()
         << "," << (test_info.result()->Failed() ? "failed" : "ok");
     pp::Instance(PSGetInstanceId()).PostMessage(msg.str());
   }
 };
 
 int example_main(int argc, char* argv[]) {
   ::testing::InitGoogleTest(&argc, argv);
-  ::testing::UnitTest::GetInstance()->listeners()
-      .Append(new GTestEventListener());
+  if (PSGetInstanceId() != 0) {
+    ::testing::UnitTest::GetInstance()->listeners()
+        .Append(new GTestEventListener());
+  }
   return RUN_ALL_TESTS();
 }
 
 // Register the function to call once the Instance Object is initialized.
 // see: pappi_simple/ps_main.h
 PPAPI_SIMPLE_REGISTER_MAIN(example_main);
-
-#endif