Make classes and structures in web fast-allocated.

Source/web/PageOverlay.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:
  *
  * 1. Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *
@@ skipping 14 matching lines @@
  * (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 PageOverlay_h
 #define PageOverlay_h
 
 #include "platform/graphics/GraphicsLayer.h"
 #include "platform/graphics/GraphicsLayerClient.h"
 #include "platform/graphics/paint/DisplayItemClient.h"
+#include "wtf/FastAllocBase.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class GraphicsContext;
 class WebPageOverlay;
 class WebViewImpl;
 class WebGraphicsContext;
 
 // Manages a layer that is overlaid on a WebView's content.
 // Clients can paint by implementing WebPageOverlay.
 //
 // With Slimming Paint, internal clients can extract a GraphicsContext to add
 // to the DisplayItemList owned by the GraphicsLayer
 class PageOverlay : public GraphicsLayerClient {
+    WTF_MAKE_FAST_ALLOCATED(PageOverlay);
 public:
     class Delegate : public GarbageCollectedFinalized<Delegate> {
     public:
         DEFINE_INLINE_VIRTUAL_TRACE() { }
 
         // Paints page overlay contents.
         virtual void paintPageOverlay(WebGraphicsContext*, const WebSize& webViewSize) = 0;
         virtual ~Delegate() { }
     };
 
@@ skipping 15 matching lines @@
     PageOverlay(WebViewImpl*, PageOverlay::Delegate*);
 
     WebViewImpl* m_viewImpl;
     Persistent<PageOverlay::Delegate> m_delegate;
     OwnPtr<GraphicsLayer> m_layer;
 };
 
 } // namespace blink
 
 #endif // PageOverlay_h