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

gpu/command_buffer/service/framebuffer_manager.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_FRAMEBUFFER_MANAGER_H_
 #define GPU_COMMAND_BUFFER_SERVICE_FRAMEBUFFER_MANAGER_H_
 
 #include "base/basictypes.h"
 #include "base/hash_tables.h"
 #include "base/memory/ref_counted.h"
@@ skipping 12 matching lines @@
  public:
   // Info about Framebuffers currently in the system.
   class GPU_EXPORT FramebufferInfo : public base::RefCounted<FramebufferInfo> {
    public:
     typedef scoped_refptr<FramebufferInfo> Ref;
 
     class Attachment : public base::RefCounted<Attachment> {
      public:
       typedef scoped_refptr<Attachment> Ref;
 
-      virtual ~Attachment() { }
       virtual GLsizei width() const = 0;
       virtual GLsizei height() const = 0;
       virtual GLenum internal_format() const = 0;
       virtual GLsizei samples() const = 0;
       virtual bool cleared() const = 0;
       virtual void SetCleared(
           RenderbufferManager* renderbuffer_manager,
           TextureManager* texture_manager) = 0;
       virtual bool IsTexture(TextureManager::TextureInfo* texture) const = 0;
       virtual bool IsRenderbuffer(
           RenderbufferManager::RenderbufferInfo* renderbuffer) const = 0;
       virtual bool CanRenderTo() const = 0;
       virtual void DetachFromFramebuffer() = 0;
       virtual bool ValidForAttachmentType(GLenum attachment_type) = 0;
+
+     protected:
+      friend base::RefCounted<Attachment>;
+      virtual ~Attachment() {}
     };
 
     FramebufferInfo(FramebufferManager* manager, GLuint service_id);
 
     GLuint service_id() const {
       return service_id_;
     }
 
     bool HasUnclearedAttachment(GLenum attachment) const;
 
@@ skipping 137 matching lines @@
 
   bool have_context_;
 
   DISALLOW_COPY_AND_ASSIGN(FramebufferManager);
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_SERVICE_FRAMEBUFFER_MANAGER_H_