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

Source/core/layout/HitTestCache.h

 // Copyright (c) 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef HitTestCache_h
 #define HitTestCache_h
 
 #include "core/CoreExport.h"
 #include "core/layout/HitTestResult.h"
 #include "platform/heap/Handle.h"
+#include "wtf/Noncopyable.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 // This object implements a cache for storing successful hit tests to DOM nodes
 // in the visible viewport. The cache is cleared on dom modifications,
 // scrolling, CSS style modifications.
 //
 // Multiple hit tests can occur when processing events. Typically the DOM doesn't
 // change when each event is processed so in order to decrease the time spent
 // processing the events a hit cache is useful. For example a GestureTap event
 // will generate a series of simulated mouse events (move, down, up, click)
 // with the same co-ordinates and ideally we'd like to do the hit test once
 // and use the result for the targetting of each event.
 //
 // Some of the related design, motivation can be found in:
 // https://docs.google.com/document/d/1b0NYAD4S9BJIpHGa4JD2HLmW28f2rUh1jlqrgpU3zVU/
 //
 
 // A cache size of 2 is used because it is relatively cheap to store;
 // and the ping-pong behaviour of some of the HitTestRequest flags during
 // Mouse/Touch/Pointer events can generate increased cache misses with
 // size of 1.
 #define HIT_TEST_CACHE_SIZE (2)
 
 class CORE_EXPORT HitTestCache final : public NoBaseWillBeGarbageCollectedFinalized<HitTestCache> {
+    WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(HitTestCache);
+    WTF_MAKE_NONCOPYABLE(HitTestCache);
 public:
     static PassOwnPtrWillBeRawPtr<HitTestCache> create()
     {
         return adoptPtrWillBeNoop(new HitTestCache);
     }
 
     // Check the cache for a possible hit and update |result| if
     // hit encountered; returning true. Otherwise false.
     bool lookupCachedResult(HitTestResult&, uint64_t domTreeVersion);
 
@@ skipping 26 matching lines @@
     };
 
     unsigned m_updateIndex;
     WillBeHeapVector<HitTestResult, HIT_TEST_CACHE_SIZE> m_items;
     uint64_t m_domTreeVersion;
 };
 
 } // namespace blink
 
 #endif // HitTestCache_h