EME: Remove obsolete legacy APIs related to versions of prefixed EME

media/cdm/ppapi/external_clear_key/clear_key_cdm.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 MEDIA_CDM_PPAPI_EXTERNAL_CLEAR_KEY_CLEAR_KEY_CDM_H_
 #define MEDIA_CDM_PPAPI_EXTERNAL_CLEAR_KEY_CLEAR_KEY_CDM_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 76 matching lines @@
 
  private:
   // Emulates a session stored for |session_id_for_emulated_loadsession_|. This
   // is necessary since aes_decryptor.cc does not support storing sessions.
   void LoadLoadableSession();
   void OnLoadSessionUpdated();
 
   // ContentDecryptionModule callbacks.
   void OnSessionMessage(const std::string& session_id,
                         MediaKeys::MessageType message_type,
-                        const std::vector<uint8_t>& message,
-                        const GURL& legacy_destination_url);
+                        const std::vector<uint8_t>& message);
   void OnSessionKeysChange(const std::string& session_id,
                            bool has_additional_usable_key,
                            CdmKeysInfo keys_info);
   void OnSessionClosed(const std::string& session_id);
 
   // Handle the success/failure of a promise. These methods are responsible for
   // calling |host_| to resolve or reject the promise.
   void OnSessionCreated(uint32_t promise_id, const std::string& session_id);
   void OnSessionLoaded(uint32_t promise_id, const std::string& session_id);
   void OnPromiseResolved(uint32_t promise_id);
@@ skipping 105 matching lines @@
   std::unique_ptr<FileIOTestRunner> file_io_test_runner_;
 
   bool is_running_output_protection_test_;
 
   DISALLOW_COPY_AND_ASSIGN(ClearKeyCdm);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_CDM_PPAPI_EXTERNAL_CLEAR_KEY_CLEAR_KEY_CDM_H_