Revert of Make classes and structures in web fast-allocated.

Source/web/WebEmbeddedWorkerImpl.h

 /*
  * 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 37 matching lines @@
 class WorkerInspectorProxy;
 class WorkerScriptLoader;
 class WorkerThread;
 
 class WebEmbeddedWorkerImpl final
     : public WebEmbeddedWorker
     , public WebFrameClient
     , public WebDevToolsAgentClient
     , private WorkerLoaderProxyProvider {
     WTF_MAKE_NONCOPYABLE(WebEmbeddedWorkerImpl);
-    WTF_MAKE_FAST_ALLOCATED(WebEmbeddedWorkerImpl);
 public:
     WebEmbeddedWorkerImpl(PassOwnPtr<WebServiceWorkerContextClient>, PassOwnPtr<WebWorkerContentSettingsClientProxy>);
     ~WebEmbeddedWorkerImpl() override;
 
     // WebEmbeddedWorker overrides.
     void startWorkerContext(const WebEmbeddedWorkerStartData&) override;
     void terminateWorkerContext() override;
     void attachDevTools(const WebString& hostId) override;
     void reattachDevTools(const WebString& hostId, const WebString& savedState) override;
     void detachDevTools() override;
@@ skipping 57 matching lines @@
         WaitingForDebuggerAfterScriptLoaded,
         NotWaitingForDebugger
     };
 
     WaitingForDebuggerState m_waitingForDebuggerState;
 };
 
 } // namespace blink
 
 #endif // WebEmbeddedWorkerImpl_h