Use scoped_ptr::Pass instead of scoped_ptr::PassAs<T>.

content/renderer/media/crypto/content_decryption_module_factory.cc

 // 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.
 
 #include "content/renderer/media/crypto/content_decryption_module_factory.h"
 
 #include "base/logging.h"
 #include "content/renderer/media/crypto/key_systems.h"
 #include "media/cdm/aes_decryptor.h"
 #include "url/gurl.h"
@@ skipping 52 matching lines @@
                              security_origin,
                              manager,
                              session_message_cb,
                              session_ready_cb,
                              session_closed_cb,
                              session_error_cb,
                              session_keys_change_cb,
                              session_expiration_update_cb);
   if (proxy_media_keys)
     *cdm_id = proxy_media_keys->GetCdmId();
-  return proxy_media_keys.PassAs<media::MediaKeys>();
+  return proxy_media_keys.Pass();
 #else
-  return scoped_ptr<media::MediaKeys>();
+  return nullptr;
 #endif  // defined(ENABLE_PEPPER_CDMS)
 }
 
 }  // namespace content