Replacing the OVERRIDE with override and FINAL with final

Source/platform/heap/ThreadState.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 1009 matching lines @@
 }
 
 void ThreadState::waitUntilSweepersDone()
 {
     MutexLocker locker(m_sweepMutex);
     while (m_numberOfSweeperTasks > 0)
         m_sweepThreadCondition.wait(m_sweepMutex);
 }
 
 
-class SweepNonFinalizedHeapTask FINAL : public WebThread::Task {
+class SweepNonFinalizedHeapTask final : public WebThread::Task {
 public:
     SweepNonFinalizedHeapTask(ThreadState* state, BaseHeap* heap, HeapStats* stats)
         : m_threadState(state)
         , m_heap(heap)
         , m_stats(stats)
     {
         m_threadState->registerSweepingTask();
     }
 
     virtual ~SweepNonFinalizedHeapTask()
@@ skipping 220 matching lines @@
             return gcInfo;
         }
     }
     if (needLockForIteration)
         threadAttachMutex().unlock();
     return 0;
 }
 #endif
 
 }