SkNonCopyable should be used with private inheritance.

src/core/SkTLList.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkTLList_DEFINED
 #define SkTLList_DEFINED
 
@@ skipping 10 matching lines @@
     the list creates the objects and they are deleted upon removal. This class block-allocates
     space for entries based on a param passed to the constructor.
 
     Elements of the list can be constructed in place using the following macros:
         SkNEW_INSERT_IN_LLIST_BEFORE(list, location, type_name, args)
         SkNEW_INSERT_IN_LLIST_AFTER(list, location, type_name, args)
     where list is a SkTLList<type_name>*, location is an iterator, and args is the paren-surrounded
     constructor arguments for type_name. These macros behave like addBefore() and addAfter().
 */
 template <typename T>
-class SkTLList : public SkNoncopyable {
+class SkTLList : SkNoncopyable {
 private:
     struct Block;
     struct Node {
         char fObj[sizeof(T)];
         SK_DECLARE_INTERNAL_LLIST_INTERFACE(Node);
         Block* fBlock; // owning block.
     };
     typedef SkTInternalLList<Node> NodeList;
 
 public:
@@ skipping 352 matching lines @@
 #define SkNEW_INSERT_IN_LLIST_AFTER(list, location, type_name, args) \
     (new ((list), SkTLList< type_name >::kAfter_Placement, (location)) type_name args)
 
 #define SkNEW_INSERT_AT_LLIST_HEAD(list, type_name, args) \
     SkNEW_INSERT_IN_LLIST_BEFORE((list), (list)->headIter(), type_name, args)
 
 #define SkNEW_INSERT_AT_LLIST_TAIL(list, type_name, args) \
     SkNEW_INSERT_IN_LLIST_AFTER((list), (list)->tailIter(), type_name, args)
 
 #endif