Sync: Add DeviceInfo's ChangeProcessor

chrome/browser/sync/glue/change_processor.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 "chrome/browser/sync/glue/change_processor.h"
 #include "chrome/browser/profiles/profile.h"
 
 namespace browser_sync {
 
 ChangeProcessor::ChangeProcessor(DataTypeErrorHandler* error_handler)
     : error_handler_(error_handler),
       share_handle_(NULL) {}
 
 ChangeProcessor::~ChangeProcessor() {
 }
 
 void ChangeProcessor::Start(Profile* profile,
                             syncer::UserShare* share_handle) {
-  DCHECK(error_handler_ && !share_handle_);
+  DCHECK(!share_handle_);
   share_handle_ = share_handle;
   StartImpl(profile);
 }
 
 // Not implemented by default.
 void ChangeProcessor::CommitChangesFromSyncModel() {}
 
 DataTypeErrorHandler* ChangeProcessor::error_handler() const {
   return error_handler_;
 }
 
 syncer::UserShare* ChangeProcessor::share_handle() const {
   return share_handle_;
 }
 
 }  // namespace browser_sync