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

gpu/command_buffer/service/context_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_SERVICE_CONTEXT_GROUP_H_
 #define GPU_COMMAND_BUFFER_SERVICE_CONTEXT_GROUP_H_
 
 #include <string>
 #include "base/basictypes.h"
 #include "base/hash_tables.h"
@@ skipping 22 matching lines @@
 struct DisallowedFeatures;
 
 // A Context Group helps manage multiple GLES2Decoders that share
 // resources.
 class GPU_EXPORT ContextGroup : public base::RefCounted<ContextGroup> {
  public:
   typedef scoped_refptr<ContextGroup> Ref;
 
   explicit ContextGroup(MailboxManager* mailbox_manager,
                         bool bind_generates_resource);
-  ~ContextGroup();
 
   // This should only be called by GLES2Decoder. This must be paired with a
   // call to destroy if it succeeds.
   bool Initialize(const DisallowedFeatures& disallowed_features,
                   const char* allowed_features);
 
   // Destroys all the resources when called for the last context in the group.
   // It should only be called by GLES2Decoder.
   void Destroy(bool have_context);
 
@@ skipping 57 matching lines @@
     return program_manager_.get();
   }
 
   ShaderManager* shader_manager() const {
     return shader_manager_.get();
   }
 
   IdAllocatorInterface* GetIdAllocator(unsigned namespace_id);
 
  private:
+  friend class base::RefCounted<ContextGroup>;
+  ~ContextGroup();
+
   bool CheckGLFeature(GLint min_required, GLint* v);
   bool CheckGLFeatureU(GLint min_required, uint32* v);
   bool QueryGLFeature(GLenum pname, GLint min_required, GLint* v);
   bool QueryGLFeatureU(GLenum pname, GLint min_required, uint32* v);
 
   scoped_refptr<MailboxManager> mailbox_manager_;
 
   // Whether or not this context is initialized.
   int num_contexts_;
   bool enforce_gl_minimums_;
@@ skipping 26 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(ContextGroup);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_CONTEXT_GROUP_H_