SkNonCopyable should be used with private inheritance.

src/gpu/GrAllocator.h

 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrAllocator_DEFINED
 #define GrAllocator_DEFINED
 
 #include "GrConfig.h"
 #include "GrTypes.h"
 #include "SkTArray.h"
 #include "SkTypes.h"
 
-class GrAllocator : public SkNoncopyable {
+class GrAllocator : SkNoncopyable {
 public:
     ~GrAllocator() {
         reset();
     }
 
     /**
      * Create an allocator
      *
      * @param   itemSize        the size of each item to allocate
      * @param   itemsPerBlock   the number of items to allocate at once
@@ skipping 119 matching lines @@
     size_t                                  fBlockSize;
     size_t                                  fItemSize;
     int                                     fItemsPerBlock;
     bool                                    fOwnFirstBlock;
     int                                     fCount;
 
     typedef SkNoncopyable INHERITED;
 };
 
 template <typename T>
-class GrTAllocator : public SkNoncopyable {
+class GrTAllocator : SkNoncopyable {
 public:
     virtual ~GrTAllocator() { this->reset(); };
 
     /**
      * Create an allocator
      *
      * @param   itemsPerBlock   the number of items to allocate at once
      */
     explicit GrTAllocator(int itemsPerBlock)
         : fAllocator(sizeof(T), itemsPerBlock, NULL) {}
@@ skipping 92 matching lines @@
 public:
     GrSTAllocator() : INHERITED(N) {
         this->setInitialBlock(fStorage.get());
     }
 
 private:
     SkAlignedSTStorage<N, T> fStorage;
 };
 
 #endif