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

Source/core/editing/EditingBehavior.h

 /*
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2010 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #ifndef EditingBehavior_h
 #define EditingBehavior_h
 
 #include "core/CoreExport.h"
 #include "core/editing/EditingBehaviorTypes.h"
+#include "wtf/Allocator.h"
 
 namespace blink {
 class KeyboardEvent;
 
 class CORE_EXPORT EditingBehavior {
-
+    STACK_ALLOCATED();
 public:
     explicit EditingBehavior(EditingBehaviorType type)
         : m_type(type)
     {
     }
 
     // Individual functions for each case where we have more than one style of editing behavior.
     // Create a new function for any platform difference so we can control it here.
 
     // When extending a selection beyond the top or bottom boundary of an editable area,
@@ skipping 55 matching lines @@
     const char* interpretKeyEvent(const KeyboardEvent&) const;
 
     bool shouldInsertCharacter(const KeyboardEvent&) const;
 private:
     EditingBehaviorType m_type;
 };
 
 } // namespace blink
 
 #endif // EditingBehavior_h