Fix potential race-condition _beginthread

ppapi/tests/test_post_message.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.
 
 #include "ppapi/tests/test_post_message.h"
 
 #include <string.h>
 #include <algorithm>
 #include <map>
 #include <sstream>
@@ skipping 851 matching lines @@
   WaitForMessages();
   ASSERT_TRUE(ClearListeners());
   ASSERT_TRUE(AddEchoingListener("message_event.data"));
   message_data_.clear();
 
   // Set up a thread for each integer from 0 to (kThreadsToRun - 1).  Make each
   // thread send the number that matches its index kMessagesToSendPerThread
   // times.  For good measure, call postMessage from the main thread
   // kMessagesToSendPerThread times. At the end, we make sure we got all the
   // values we expected.
-  PP_ThreadType threads[kThreadsToRun];
+  PP_Thread threads[kThreadsToRun];
   for (int32_t i = 0; i < kThreadsToRun; ++i) {
     // Set up a thread to send a value of i.
     void* arg = new InvokePostMessageThreadArg(instance_, pp::Var(i));
     PP_CreateThread(&threads[i], &InvokePostMessageThreadFunc, arg);
   }
   // Invoke PostMessage right now to send a value of (kThreadsToRun).
   for (int32_t i = 0; i < kMessagesToSendPerThread; ++i)
     instance_->PostMessage(pp::Var(kThreadsToRun));
 
   // Now join all threads.
@@ skipping 26 matching lines @@
     ASSERT_TRUE(received_value <= kThreadsToRun);
     ++received_counts[received_value];
   }
   ASSERT_EQ(expected_counts, received_counts);
 
   message_data_.clear();
   ASSERT_TRUE(ClearListeners());
 
   PASS();
 }