Move MediaKeys::Exception to CdmPromise::Exception

media/remoting/proto/remoting_rpc_message.proto

 // Copyright 2016 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.
 //
 // Protocol buffer for Media Remoting.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
@@ skipping 239 matching lines @@
     OUTPUT_DOWNSCALED = 4;
     KEY_STATUS_PENDING = 5;
     RELEASED = 6;
   }
 
   optional bytes key_id = 1;
   optional KeyStatus status = 2;
   optional uint32 system_code = 3;
 }
 
-// Should align with ::media::MediaKeys::Exception
+// Should align with ::media::CdmPromise::Exception
 enum MediaKeysException {
   NOT_SUPPORTED_ERROR = 0;
   INVALID_STATE_ERROR = 1;
   INVALID_ACCESS_ERROR = 2;
   QUOTA_EXCEEDED_ERROR = 3;
   UNKNOWN_ERROR = 4;
   CLIENT_ERROR = 5;
   OUTPUT_ERROR = 6;
 }
 
@@ skipping 288 matching lines @@
 
     // RPC_CDMC_ONSESSIONMESSAGE
     CdmClientOnSessionMessage cdmclient_onsessionmessage_rpc = 601;
     // RPC_CDMC_ONSESSIONKEYSCHANGE
     CdmClientOnSessionKeysChange cdmclient_onsessionkeychange_rpc = 602;
     // RPC_CDMC_ONSESSIONEXPIRATIONUPDATE
     CdmClientOnSessionExpirationUpdate cdmclient_onsessionexpirationupdate_rpc =
         603;
   };
 }