Make classes and structures in web fast-allocated.

Source/web/LinkHighlightImpl.h

 /*
  * Copyright (C) 2012 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.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 32 matching lines @@
 class LayoutBoxModelObject;
 class Node;
 class WebContentLayer;
 class WebLayer;
 class WebViewImpl;
 
 class LinkHighlightImpl final : public LinkHighlight
     , public WebContentLayerClient
     , public WebCompositorAnimationDelegate
     , public WebCompositorAnimationPlayerClient {
+    WTF_MAKE_FAST_ALLOCATED(LinkHighlightImpl);
 public:
     static PassOwnPtr<LinkHighlightImpl> create(Node*, WebViewImpl*);
     ~LinkHighlightImpl() override;
 
     WebContentLayer* contentLayer();
     WebLayer* clipLayer();
     void startHighlightAnimationIfNeeded();
     void updateGeometry();
 
     // WebContentLayerClient implementation.
@@ skipping 36 matching lines @@
     OwnPtr<WebCompositorAnimationPlayer> m_compositorPlayer;
 
     bool m_geometryNeedsUpdate;
     bool m_isAnimating;
     double m_startTime;
 };
 
 } // namespace blink
 
 #endif // LinkHighlightImpl_h