Make classes and structures in web fast-allocated.

Source/web/tests/FakeWebPlugin.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:
  *
  *     * 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 FakeWebPlugin_h
 #define FakeWebPlugin_h
 
 #include "public/web/WebPlugin.h"
+#include "wtf/FastAllocBase.h"
 
 namespace blink {
 
 class WebDragData;
 class WebFrame;
 class WebInputEvent;
 class WebPluginContainer;
 class WebURL;
 class WebURLResponse;
 struct WebPluginParams;
 
 class FakeWebPlugin : public WebPlugin {
+    WTF_MAKE_FAST_ALLOCATED(FakeWebPlugin);
 public:
     FakeWebPlugin(WebFrame*, const WebPluginParams&);
 
     // WebPlugin methods:
     bool initialize(WebPluginContainer*) override;
     void destroy() override;
     NPObject* scriptableObject() override { return 0; }
     bool canProcessDrag() const override { return false; }
     void layoutIfNeeded() override { }
     void paint(WebCanvas*, const WebRect&) override { }
@@ skipping 17 matching lines @@
     WebPluginContainer* container() const { return m_container; }
 
 private:
     WebFrame* m_frame;
     WebPluginContainer* m_container;
 };
 
 } // namespace blink
 
 #endif // FakeWebPlugin_h