Make classes and structures in core/page fast-allocated.

Source/core/page/PageSerializer.h

 /*
  * Copyright (C) 2011 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 46 matching lines @@
 class StylePropertySet;
 
 struct SerializedResource;
 
 // This class is used to serialize a page contents back to text (typically HTML).
 // It serializes all the page frames and retrieves resources such as images and CSS stylesheets.
 class CORE_EXPORT PageSerializer final {
     STACK_ALLOCATED();
 public:
     class Delegate {
+        WTF_MAKE_FAST_ALLOCATED(Delegate);
     public:
         virtual ~Delegate() { }
         virtual bool shouldIgnoreAttribute(const Attribute&) = 0;
     };
 
     PageSerializer(Vector<SerializedResource>*, PassOwnPtr<Delegate>);
 
     // Initiates the serialization of the frame's page. All serialized content and retrieved
     // resources are added to the Vector passed to the constructor. The first resource in that
     // vector is the top frame serialized content.
@@ skipping 33 matching lines @@
     HashMap<String, String> m_rewriteURLs;
     String m_rewriteFolder;
     unsigned m_blankFrameCounter;
 
     OwnPtr<Delegate> m_delegate;
 };
 
 } // namespace blink
 
 #endif // PageSerializer_h