Cleanup Semaphore class.

test/cctest/test-thread-termination.cc

Index: test/cctest/test-thread-termination.cc
diff --git a/test/cctest/test-thread-termination.cc b/test/cctest/test-thread-termination.cc
index b29b1dcf0c6dc519ddd691d5eea9ac771bdbb51e..4c0853955cfff25b8025fb90f5b55672e4cde5b5 100644
--- a/test/cctest/test-thread-termination.cc
+++ b/test/cctest/test-thread-termination.cc
@@ -171,7 +171,7 @@ class TerminatorThread : public v8::internal::Thread {
 // Test that a single thread of JavaScript execution can be terminated
 // from the side by another thread.
 TEST(TerminateOnlyV8ThreadFromOtherThread) {
-  semaphore = v8::internal::OS::CreateSemaphore(0);
+  semaphore = new v8::internal::Semaphore(0);
   TerminatorThread thread(i::Isolate::Current());
   thread.Start();
 
@@ -225,7 +225,7 @@ TEST(TerminateMultipleV8ThreadsDefaultIsolate) {
     v8::Locker locker(CcTest::default_isolate());
     v8::V8::Initialize();
     v8::Locker::StartPreemption(1);
-    semaphore = v8::internal::OS::CreateSemaphore(0);
+    semaphore = new v8::internal::Semaphore(0);
   }
   const int kThreads = 2;
   i::List<LoopingThread*> threads(kThreads);