RefCounted types should not have public destructors, media/ and gpu/ edition

gpu/command_buffer/client/share_group.h

 // Copyright (c) 2012 The Chromium 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 GPU_COMMAND_BUFFER_CLIENT_SHARE_GROUP_H_
 #define GPU_COMMAND_BUFFER_CLIENT_SHARE_GROUP_H_
 
 #include <GLES2/gl2.h>
 #include "../client/ref_counted.h"
 #include "../common/gles2_cmd_format.h"
@@ skipping 31 matching lines @@
   virtual bool MarkAsUsedForBind(GLuint id) = 0;
 };
 
 // ShareGroup manages shared resources for contexts that are sharing resources.
 class GLES2_IMPL_EXPORT ShareGroup
     : public gpu::RefCountedThreadSafe<ShareGroup> {
  public:
   typedef scoped_refptr<ShareGroup> Ref;
 
   ShareGroup(bool share_resources, bool bind_generates_resource);
-  ~ShareGroup();
 
   void SetGLES2ImplementationForDestruction(GLES2Implementation* gl_impl);
 
   bool sharing_resources() const {
     return sharing_resources_;
   }
 
   bool bind_generates_resource() const {
     return bind_generates_resource_;
   }
 
   bool Initialize();
 
   IdHandlerInterface* GetIdHandler(int namespace_id) const {
     return id_handlers_[namespace_id].get();
   }
 
   ProgramInfoManager* program_info_manager() {
     return program_info_manager_.get();
   }
 
  private:
+  friend class gpu::RefCountedThreadSafe<ShareGroup>;
+  ~ShareGroup();
+
   scoped_ptr<IdHandlerInterface> id_handlers_[id_namespaces::kNumIdNamespaces];
   scoped_ptr<ProgramInfoManager> program_info_manager_;
 
   // Whether or not this context is sharing resources.
   bool sharing_resources_;
   bool bind_generates_resource_;
 
   GLES2Implementation* gles2_;
 
   DISALLOW_COPY_AND_ASSIGN(ShareGroup);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_CLIENT_SHARE_GROUP_H_