Add |legacy_destination_url| back to SessionMessage for EME

ppapi/c/private/ppb_content_decryptor_private.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.
  */
 
 /* From private/ppb_content_decryptor_private.idl,
- *   modified Wed Jan  7 16:48:10 2015.
+ *   modified Mon Jan 12 17:33:29 2015.
  */
 
 #ifndef PPAPI_C_PRIVATE_PPB_CONTENT_DECRYPTOR_PRIVATE_H_
 #define PPAPI_C_PRIVATE_PPB_CONTENT_DECRYPTOR_PRIVATE_H_
 
 #include "ppapi/c/pp_bool.h"
 #include "ppapi/c/pp_instance.h"
 #include "ppapi/c/pp_macros.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/pp_stdint.h"
@@ skipping 77 matching lines @@
    *
    * @param[in] web_session_id A <code>PP_Var</code> of type
    * <code>PP_VARTYPE_STRING</code> containing the ID of a session for
    * which this message is intended.
    *
    * @param[in] message_type A <code>PP_CdmMessageType</code> containing the
    * message type.
    *
    * @param[in] message A <code>PP_Var</code> of type
    * <code>PP_VARTYPE_ARRAY_BUFFER</code> that contains the message.
+   *
+   * @param[in] legacy_destination_url A <code>PP_Var</code> of type
+   * <code>PP_VARTYPE_STRING</code> containing the destination URL for the
+   * message.
    */
   void (*SessionMessage)(PP_Instance instance,
                          struct PP_Var web_session_id,
                          PP_CdmMessageType message_type,
-                         struct PP_Var message);
+                         struct PP_Var message,
+                         struct PP_Var legacy_destination_url);
   /**
    * The keys for a session have changed.
    *
    * @param[in] web_session_id A <code>PP_Var</code> of type
    * <code>PP_VARTYPE_STRING</code> containing the ID of the session that has
    * a change in keys.
    *
    * @param[in] has_additional_usable_key A <code>PP_Bool</code> indicating if
    * a new usable key has been added.
    *
@@ skipping 183 matching lines @@
       const struct PP_DecryptedSampleInfo* decrypted_sample_info);
 };
 
 typedef struct PPB_ContentDecryptor_Private_0_13 PPB_ContentDecryptor_Private;
 /**
  * @}
  */
 
 #endif  /* PPAPI_C_PRIVATE_PPB_CONTENT_DECRYPTOR_PRIVATE_H_ */