RefCounted types should not have public destructors, webkit/ edition

webkit/plugins/ppapi/plugin_delegate.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 WEBKIT_PLUGINS_PPAPI_PLUGIN_DELEGATE_H_
 #define WEBKIT_PLUGINS_PPAPI_PLUGIN_DELEGATE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 264 matching lines @@
    public:
     virtual ~PlatformVideoCaptureEventHandler() {}
 
     virtual void OnInitialized(media::VideoCapture* capture,
                                bool succeeded) = 0;
   };
 
   class PlatformVideoCapture : public media::VideoCapture,
                                public base::RefCounted<PlatformVideoCapture> {
    public:
+    // Detaches the event handler and stops sending notifications to it.
+    virtual void DetachEventHandler() = 0;
+
+   protected:
     virtual ~PlatformVideoCapture() {}
 
-    // Detaches the event handler and stops sending notifications to it.
-    virtual void DetachEventHandler() = 0;
+   private:
+    friend class base::RefCounted<PlatformVideoCapture>;
   };
 
   // Provides access to the ppapi broker.
   class Broker {
    public:
     virtual void Connect(webkit::ppapi::PPB_Broker_Impl* client) = 0;
 
     // Decrements the references to the broker.
     // When there are no more references, this renderer's dispatcher is
     // destroyed, allowing the broker to shutdown if appropriate.
@@ skipping 337 matching lines @@
   virtual webkit_glue::ClipboardClient* CreateClipboardClient() const = 0;
 
   // Returns a Device ID
   virtual std::string GetDeviceID() = 0;
 };
 
 }  // namespace ppapi
 }  // namespace webkit
 
 #endif  // WEBKIT_PLUGINS_PPAPI_PLUGIN_DELEGATE_H_