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

Source/core/fetch/MemoryCache.h

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
     Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
 
     This library is free software; you can redistribute it and/or
     modify it under the terms of the GNU Library General Public
     License as published by the Free Software Foundation; either
     version 2 of the License, or (at your option) any later version.
 
@@ skipping 11 matching lines @@
     pages from the web. It has a memory cache for these objects.
 */
 
 #ifndef MemoryCache_h
 #define MemoryCache_h
 
 #include "core/CoreExport.h"
 #include "core/fetch/Resource.h"
 #include "core/fetch/ResourcePtr.h"
 #include "public/platform/WebThread.h"
+#include "wtf/Allocator.h"
 #include "wtf/HashMap.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/Vector.h"
 #include "wtf/text/StringHash.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink  {
 
 class Resource;
 class KURL;
@@ skipping 88 matching lines @@
 namespace blink {
 
 class CORE_EXPORT MemoryCache final : public GarbageCollectedFinalized<MemoryCache>, public WebThread::TaskObserver {
     WTF_MAKE_NONCOPYABLE(MemoryCache);
 public:
     static MemoryCache* create();
     ~MemoryCache();
     DECLARE_TRACE();
 
     struct TypeStatistic {
+        STACK_ALLOCATED();
         size_t count;
         size_t size;
         size_t liveSize;
         size_t decodedSize;
         size_t encodedSize;
         size_t encodedSizeDuplicatedInDataURLs;
         size_t purgeableSize;
         size_t purgedSize;
 
         TypeStatistic()
             : count(0)
             , size(0)
             , liveSize(0)
             , decodedSize(0)
             , encodedSize(0)
             , encodedSizeDuplicatedInDataURLs(0)
             , purgeableSize(0)
             , purgedSize(0)
         {
         }
 
         void addResource(Resource*);
     };
 
     struct Statistics {
+        STACK_ALLOCATED();
         TypeStatistic images;
         TypeStatistic cssStyleSheets;
         TypeStatistic scripts;
         TypeStatistic xslStyleSheets;
         TypeStatistic fonts;
         TypeStatistic other;
     };
 
     Resource* resourceForURL(const KURL&);
     Resource* resourceForURL(const KURL&, const String& cacheIdentifier);
@@ skipping 147 matching lines @@
 // Returns the global cache.
 CORE_EXPORT MemoryCache* memoryCache();
 
 // Sets the global cache, used to swap in a test instance. Returns the old
 // MemoryCache object.
 CORE_EXPORT MemoryCache* replaceMemoryCacheForTesting(MemoryCache*);
 
 }
 
 #endif