sync: Process client commands on commit response

sync/engine/download_updates_command.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 "sync/engine/download_updates_command.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "sync/engine/syncer.h"
@@ skipping 122 matching lines @@
   }
 
   status->mutable_updates_response()->CopyFrom(update_response);
 
   DVLOG(1) << "GetUpdates "
            << " returned " << update_response.get_updates().entries_size()
            << " updates and indicated "
            << update_response.get_updates().changes_remaining()
            << " updates left on server.";
 
+  if (update_response.has_client_command()) {
+    session->ProcessClientCommand(update_response.client_command());
+  }
+
   if (need_encryption_key) {
     status->set_last_get_key_result(
         HandleGetEncryptionKeyResponse(update_response, dir));
   }
 
   return result;
 }
 
 void DownloadUpdatesCommand::AppendClientDebugInfoIfNeeded(
     sessions::SyncSession* session,
     DebugInfo* debug_info) {
   // We want to send the debug info only once per sync cycle. Check if it has
   // already been sent.
   if (!session->status_controller().debug_info_sent()) {
     DVLOG(1) << "Sending client debug info ...";
     // could be null in some unit tests.
     if (session->context()->debug_info_getter()) {
       session->context()->debug_info_getter()->GetAndClearDebugInfo(
           debug_info);
     }
     session->mutable_status_controller()->set_debug_info_sent();
   }
 }
 
 }  // namespace syncer