Encrypted Media: Use uint32 for systemCode in SessionError.

content/renderer/pepper/pepper_plugin_instance_impl.cc

 // 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.
 
 #include "content/renderer/pepper/pepper_plugin_instance_impl.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 2349 matching lines @@
 }
 
 void PepperPluginInstanceImpl::SessionClosed(PP_Instance instance,
                                              uint32_t session_id) {
   content_decryptor_delegate_->OnSessionClosed(session_id);
 }
 
 void PepperPluginInstanceImpl::SessionError(PP_Instance instance,
                                             uint32_t session_id,
                                             int32_t media_error,
-                                            int32_t system_code) {
+                                            uint32_t system_code) {
   content_decryptor_delegate_->OnSessionError(
       session_id, media_error, system_code);
 }
 
 void PepperPluginInstanceImpl::DeliverBlock(
     PP_Instance instance,
     PP_Resource decrypted_block,
     const PP_DecryptedBlockInfo* block_info) {
   content_decryptor_delegate_->DeliverBlock(decrypted_block, block_info);
 }
@@ skipping 796 matching lines @@
     // Running out-of-process. Initiate an IPC call to notify the plugin
     // process.
     ppapi::proxy::HostDispatcher* dispatcher =
         ppapi::proxy::HostDispatcher::GetForInstance(pp_instance());
     dispatcher->Send(new PpapiMsg_PPPInstance_HandleDocumentLoad(
         ppapi::API_ID_PPP_INSTANCE, pp_instance(), pending_host_id, data));
   }
 }
 
 }  // namespace content