Add decoder de-initialize and reset to the Pepper CDM API.

ppapi/proxy/ppp_content_decryptor_private_proxy.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 PPAPI_PROXY_PPP_CONTENT_DECRYPTOR_PRIVATE_PROXY_H_
 #define PPAPI_PROXY_PPP_CONTENT_DECRYPTOR_PRIVATE_PROXY_H_
 
 #include <string>
 
 #include "ppapi/c/pp_instance.h"
@@ skipping 24 matching lines @@
                                SerializedVarReceiveInput init_data);
   void OnMsgAddKey(PP_Instance instance,
                    SerializedVarReceiveInput session_id,
                    SerializedVarReceiveInput key,
                    SerializedVarReceiveInput init_data);
   void OnMsgCancelKeyRequest(PP_Instance instance,
                              SerializedVarReceiveInput session_id);
   void OnMsgDecrypt(PP_Instance instance,
                     const PPPDecryptor_Buffer& encrypted_buffer,
                     const std::string& serialized_encrypted_block_info);
+  void OnMsgDeinitializeDecoder(PP_Instance instance,
+                                PP_StreamType decoder_type,
+                                uint32_t request_id);
+  void OnMsgResetDecoder(PP_Instance instance,
+                         PP_StreamType decoder_type,
+                         uint32_t request_id);
   void OnMsgDecryptAndDecodeFrame(
       PP_Instance instance,
       const PPPDecryptor_Buffer& encrypted_frame,
       const std::string& serialized_encrypted_frame_info);
 
   const PPP_ContentDecryptor_Private* ppp_decryptor_impl_;
 
   DISALLOW_COPY_AND_ASSIGN(PPP_ContentDecryptor_Private_Proxy);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_PPP_CONTENT_DECRYPTOR_PRIVATE_PROXY_H_