[NaCl SDK] Don't exit from nacl_io_test before posting message to JS.

native_client_sdk/src/tests/nacl_io_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)
 
@@ skipping 42 matching lines @@
 
   virtual void OnTestProgramEnd(const ::testing::UnitTest&) {
     pp::Instance(PSGetInstanceId()).PostMessage("testend");
   }
 };
 
 int example_main(int argc, char* argv[]) {
   ::testing::InitGoogleTest(&argc, argv);
   ::testing::UnitTest::GetInstance()->listeners()
       .Append(new GTestEventListener());
-  return RUN_ALL_TESTS();
+  int result = RUN_ALL_TESTS();
+
+  // When running as an automated test, we don't want the final message
+  // ("testend") to be dropped, so don't exit. The web page will kill the
+  // plugin if it needs to.
+  while(1);
+
+  // Silence the warning.
+  return result;
 }
 
 // Register the function to call once the Instance Object is initialized.
 // see: pappi_simple/ps_main.h
 PPAPI_SIMPLE_REGISTER_MAIN(example_main);
 
 #endif