Make classes and structures in core/events and core/fetch fast-allocated.

Source/core/events/NavigatorEvents.h

 /*
  * Copyright (C) 2013 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 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * 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 NavigatorEvents_h
 #define NavigatorEvents_h
 
+#include "wtf/Allocator.h"
+
 namespace blink {
 
 class Navigator;
 
 class NavigatorEvents {
+    STATIC_ONLY(NavigatorEvents);
 public:
     static long maxTouchPoints(Navigator&);
 };
 
 } // namespace blink
 
 #endif // NavigatorEvents_h