Strictly disable instantiation of AllStatic class

src/allocation.h

 // Copyright 2012 the V8 project 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 V8_ALLOCATION_H_
 #define V8_ALLOCATION_H_
 
 #include "src/globals.h"
 
 namespace v8 {
@@ skipping 27 matching lines @@
  public:
   void* operator new(size_t size);
   void  operator delete(void* p);
 };
 #define BASE_EMBEDDED : public Embedded
 #else
 #define BASE_EMBEDDED
 #endif
 
 
-// Superclass for classes only using statics.
+// Superclass for classes only using static method functions.
+// The subclass of AllStatic cannot be instantiated at all.
 class AllStatic {
 #ifdef DEBUG
  public:
-  void* operator new(size_t size);
-  void operator delete(void* p);
+  AllStatic() = delete;
 #endif
 };
 
 
 template <typename T>
 T* NewArray(size_t size) {
   T* result = new T[size];
   if (result == NULL) FatalProcessOutOfMemory("NewArray");
   return result;
 }
@@ skipping 21 matching lines @@
 };
 
 
 void* AlignedAlloc(size_t size, size_t alignment);
 void AlignedFree(void *ptr);
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_ALLOCATION_H_