SkNonCopyable should be used with private inheritance.

src/gpu/GrBufferAllocPool.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 GrBufferAllocPool_DEFINED
 #define GrBufferAllocPool_DEFINED
 
 #include "SkTArray.h"
 #include "SkTDArray.h"
 #include "SkTypes.h"
 
 class GrGeometryBuffer;
 class GrGpu;
 
 /**
  * A pool of geometry buffers tied to a GrGpu.
  *
  * The pool allows a client to make space for geometry and then put back excess
  * space if it over allocated. When a client is ready to draw from the pool
  * it calls unlock on the pool ensure buffers are ready for drawing. The pool
  * can be reset after drawing is completed to recycle space.
  *
  * At creation time a minimum per-buffer size can be specified. Additionally,
  * a number of buffers to preallocate can be specified. These will
  * be allocated at the min size and kept around until the pool is destroyed.
  */
-class GrBufferAllocPool : public SkNoncopyable {
+class GrBufferAllocPool : SkNoncopyable {
 public:
     /**
      * Ensures all buffers are unlocked and have all data written to them.
      * Call before drawing using buffers from the pool.
      */
     void unlock();
 
     /**
      *  Invalidates all the data in the pool, unrefs non-preallocated buffers.
      */
@@ skipping 297 matching lines @@
      * @return number of indices that fit in one of the preallocated index
      *         buffers.
      */
     int preallocatedBufferIndices() const;
 
 private:
     typedef GrBufferAllocPool INHERITED;
 };
 
 #endif