Add |legacy_destination_url| to SessionMessage in CDM_7.

content_decryption_module.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 CDM_CONTENT_DECRYPTION_MODULE_H_
 #define CDM_CONTENT_DECRYPTION_MODULE_H_
 
 #if defined(_MSC_VER)
 typedef unsigned char uint8_t;
 typedef unsigned int uint32_t;
@@ skipping 979 matching lines @@
   // |error| must be specified, |error_message| and |system_code|
   // are optional. |error_message_size| should not include null termination.
   virtual void OnRejectPromise(uint32_t promise_id,
                                Error error,
                                uint32_t system_code,
                                const char* error_message,
                                uint32_t error_message_size) = 0;
 
   // Called by the CDM when it has a message for session |session_id|.
   // Size parameters should not include null termination.
+  // |legacy_destination_url| is included only for the prefixed API.

[ddorwin, 2015/01/13 18:01:07]

nit: For additional clarity and similarity with 1043-5:
"... is only for supporting prefixed EME API and ignored by unprefixed EME."

Should we note that it should only be non-null if message_type is renewal?

[xhwang, 2015/01/13 18:04:14]

This sounds like implementation detail of specific key systems...

[jrummell, 2015/01/13 18:40:45]

Done. There is no comment on CDM_6 OnSessionMessage() about what the url is used
for, so left that out.

[jrummell, 2015/01/13 18:40:45]

Agreed.

   virtual void OnSessionMessage(const char* session_id,
                                 uint32_t session_id_size,
                                 MessageType message_type,
                                 const char* message,
-                                uint32_t message_size) = 0;
+                                uint32_t message_size,
+                                const char* legacy_destination_url,
+                                uint32_t legacy_destination_url_length) = 0;
 
   // Called by the CDM when there has been a change in keys or their status for
   // session |session_id|. |has_additional_usable_key| should be set if a
   // key is newly usable (e.g. new key available, previously expired key has
   // been renewed, etc.) and the browser should attempt to resume playback.
   // |key_ids| is the list of key ids for this session along with their
   // current status. |key_ids_count| is the number of entries in |key_ids|.
   // Size parameter for |session_id| should not include null termination.
   virtual void OnSessionKeysChange(const char* session_id,
                                    uint32_t session_id_size,
@@ skipping 141 matching lines @@
   virtual AudioFormat Format() const = 0;
 
  protected:
   AudioFrames() {}
   virtual ~AudioFrames() {}
 };
 
 }  // namespace cdm
 
 #endif  // CDM_CONTENT_DECRYPTION_MODULE_H_