Update inspector classes to use OVERRIDE / FINAL when needed

Source/core/inspector/AsyncCallStackTracker.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 35 matching lines @@
 static const char setTimeoutName[] = "setTimeout";
 static const char setIntervalName[] = "setInterval";
 static const char requestAnimationFrameName[] = "requestAnimationFrame";
 static const char xhrSendName[] = "XMLHttpRequest.send";
 static const char enqueueMutationRecordName[] = "Mutation";
 
 }
 
 namespace WebCore {
 
-class AsyncCallStackTracker::ExecutionContextData : public ContextLifecycleObserver {
+class AsyncCallStackTracker::ExecutionContextData FINAL : public ContextLifecycleObserver {
     WTF_MAKE_FAST_ALLOCATED;
 public:
     typedef std::pair<RegisteredEventListener, RefPtr<AsyncCallChain> > EventListenerAsyncCallChain;
     typedef Vector<EventListenerAsyncCallChain, 1> EventListenerAsyncCallChainVector;
     typedef HashMap<AtomicString, EventListenerAsyncCallChainVector> EventListenerAsyncCallChainVectorHashMap;
 
     ExecutionContextData(AsyncCallStackTracker* tracker, ExecutionContext* executionContext)
         : ContextLifecycleObserver(executionContext)
         , m_tracker(tracker)
     {
@@ skipping 354 matching lines @@
 {
     m_currentAsyncCallChain.clear();
     m_nestedAsyncCallCount = 0;
     ExecutionContextDataMap copy;
     m_executionContextDataMap.swap(copy);
     for (ExecutionContextDataMap::const_iterator it = copy.begin(); it != copy.end(); ++it)
         delete it->value;
 }
 
 } // namespace WebCore