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

Source/core/inspector/InstanceCounters.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 InstanceCounters_h
 #define InstanceCounters_h
 
 #include "core/CoreExport.h"
-#include "wtf/FastAllocBase.h"
+#include "wtf/Allocator.h"
 
 #if ENABLE(ASSERT)
 #include "wtf/MainThread.h"
 #endif
 
 namespace blink {
 
 class InstanceCounters {
+    STATIC_ONLY(InstanceCounters);
 public:
     enum CounterType {
         ActiveDOMObjectCounter,
         AudioHandlerCounter,
         DocumentCounter,
         FrameCounter,
         JSEventListenerCounter,
         LayoutObjectCounter,
         NodeCounter,
         ResourceCounter,
@@ skipping 12 matching lines @@
 
     static inline void decrementCounter(CounterType type)
     {
         ASSERT(isMainThread());
         --s_counters[type];
     }
 
     CORE_EXPORT static int counterValue(CounterType);
 
 private:
-    InstanceCounters();
-
     CORE_EXPORT static int s_counters[CounterTypeLength];
 };
 
 } // namespace blink
 
 #endif // !defined(InstanceCounters_h)