Mojo: Remove url type converters.

media/mojo/interfaces/content_decryption_module.mojom

 // Copyright 2014 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.
 
 module media.mojom;
 
 import "media/mojo/interfaces/decryptor.mojom";
+import "url/mojo/url.mojom";
 
 // Transport layer of media::MediaKeys::Exception (see media/base/media_keys.h).
 // This is used for ContentDecryptionModule (CDM) promise rejections.
 enum CdmException {
   NOT_SUPPORTED_ERROR,
   INVALID_STATE_ERROR,
   INVALID_ACCESS_ERROR,
   QUOTA_EXCEEDED_ERROR,
   UNKNOWN_ERROR,
   CLIENT_ERROR,
@@ skipping 106 matching lines @@
   CloseSession(string session_id) => (CdmPromiseResult result);
 
   // Removes stored session data associated with the active session specified by
   // |session_id|.
   RemoveSession(string session_id) => (CdmPromiseResult result);
 };
 
 // Session callbacks. See media/base/media_keys.h for details.
 interface ContentDecryptionModuleClient {
   OnSessionMessage(string session_id, CdmMessageType message_type,
-                   array<uint8> message, string legacy_destination_url);
+                   array<uint8> message, url.mojom.Url legacy_destination_url);
 
   OnSessionClosed(string session_id);
 
   OnLegacySessionError(string session_id, CdmException exception,
                        uint32 system_code, string error_message);
 
   OnSessionKeysChange(string session_id, bool has_additional_usable_key,
                       array<CdmKeyInformation> key_information);
 
   // Provide session expiration update for |session_id|.
   // |new_expiry_time_sec| is the number of seconds since epoch (Jan 1, 1970).
   OnSessionExpirationUpdate(string session_id, double new_expiry_time_sec);
 };