Revert of Make classes and structures in web fast-allocated.

Source/web/SpellCheckerClientImpl.h

 /*
  * Copyright (C) 2009 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 16 matching lines @@
  * (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 SpellCheckerClientImpl_h
 #define SpellCheckerClientImpl_h
 
 #include "core/page/SpellCheckerClient.h"
 #include "platform/heap/Handle.h"
 #include "platform/text/TextCheckerClient.h"
-#include "wtf/Allocator.h"
 
 namespace blink {
 
 class WebViewImpl;
 
 class SpellCheckerClientImpl final : public SpellCheckerClient, public TextCheckerClient {
-    DISALLOW_ALLOCATION();
 public:
     explicit SpellCheckerClientImpl(WebViewImpl*);
 
     ~SpellCheckerClientImpl() override;
 
     bool isContinuousSpellCheckingEnabled() override;
     void toggleContinuousSpellChecking() override;
     bool isGrammarCheckingEnabled() override;
     bool shouldEraseMarkersAfterChangeSelection(TextCheckingType) const override;
     void checkSpellingOfString(const String&, int* misspellingLocation, int* misspellingLength) override;
@@ skipping 24 matching lines @@
     enum {
         SpellCheckAutomatic,
         SpellCheckForcedOn,
         SpellCheckForcedOff
     } m_spellCheckThisFieldStatus;
 };
 
 } // namespace blink
 
 #endif