Move SessionIdAdapter out of WebContentDecryptionModuleImpl

content/renderer/media/webcontentdecryptionmodule_impl.h

 // Copyright 2013 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 CONTENT_RENDERER_MEDIA_WEBCONTENTDECRYPTIONMODULE_IMPL_H_
 #define CONTENT_RENDERER_MEDIA_WEBCONTENTDECRYPTIONMODULE_IMPL_H_
 
 #include <string>
 
+#include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/strings/string16.h"
 #include "third_party/WebKit/public/platform/WebContentDecryptionModule.h"
 
 namespace media {
 class Decryptor;
 class MediaKeys;
 }
 
 namespace content {
 
+class CdmSessionIdAdapter;
 class WebContentDecryptionModuleSessionImpl;
-class SessionIdAdapter;
 
 class WebContentDecryptionModuleImpl
     : public blink::WebContentDecryptionModule {
  public:
   static WebContentDecryptionModuleImpl* Create(
       const base::string16& key_system);
 
   virtual ~WebContentDecryptionModuleImpl();
 
   // Returns the Decryptor associated with this CDM. May be NULL if no
   // Decryptor associated with the MediaKeys object.
   // TODO(jrummell): Figure out lifetimes, as WMPI may still use the decryptor
   // after WebContentDecryptionModule is freed. http://crbug.com/330324
   media::Decryptor* GetDecryptor();
 
   // blink::WebContentDecryptionModule implementation.
   virtual blink::WebContentDecryptionModuleSession* createSession(
       blink::WebContentDecryptionModuleSession::Client* client);
 
  private:
-  // Takes ownership of |media_keys| and |adapter|.
-  WebContentDecryptionModuleImpl(scoped_ptr<media::MediaKeys> media_keys,
-                                 scoped_ptr<SessionIdAdapter> adapter);
+  // Takes reference to |adapter|.
+  WebContentDecryptionModuleImpl(scoped_refptr<CdmSessionIdAdapter> adapter);
 
-  // Called when a WebContentDecryptionModuleSessionImpl is closed.
-  void OnSessionClosed(uint32 session_id);
-
-  scoped_ptr<media::MediaKeys> media_keys_;
-  scoped_ptr<SessionIdAdapter> adapter_;
+  scoped_refptr<CdmSessionIdAdapter> adapter_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentDecryptionModuleImpl);
 };
 
 // Allow typecasting from blink type as this is the only implementation.
 inline WebContentDecryptionModuleImpl* ToWebContentDecryptionModuleImpl(
     blink::WebContentDecryptionModule* cdm) {
   return static_cast<WebContentDecryptionModuleImpl*>(cdm);
 }
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_WEBCONTENTDECRYPTIONMODULE_IMPL_H_