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

Source/web/WebPluginLoadObserver.h

 /*
  * Copyright (C) 2009 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 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef WebPluginLoadObserver_h
 #define WebPluginLoadObserver_h
 
 #include "public/platform/WebURL.h"
-#include "wtf/FastAllocBase.h"
 
 namespace blink {
 
 class WebPluginContainerImpl;
 struct WebURLError;
 
 class WebPluginLoadObserver {
-    WTF_MAKE_FAST_ALLOCATED(WebPluginLoadObserver);
 public:
     WebPluginLoadObserver(WebPluginContainerImpl* pluginContainer,
                           const WebURL& notifyURL, void* notifyData)
         : m_pluginContainer(pluginContainer)
         , m_notifyURL(notifyURL)
         , m_notifyData(notifyData)
     {
     }
 
     ~WebPluginLoadObserver();
 
     const WebURL& url() const { return m_notifyURL; }
 
     void clearPluginContainer() { m_pluginContainer = 0; }
     void didFinishLoading();
     void didFailLoading(const WebURLError&);
 
 private:
     WebPluginContainerImpl* m_pluginContainer;
     WebURL m_notifyURL;
     void* m_notifyData;
 };
 
 } // namespace blink
 
 #endif