Use delete journal to remove bookmarks that are already deleted in sync model

chrome/browser/sync/glue/generic_change_processor.h

Index: chrome/browser/sync/glue/generic_change_processor.h
diff --git a/chrome/browser/sync/glue/generic_change_processor.h b/chrome/browser/sync/glue/generic_change_processor.h
index a987ebeb4a5993c14749b0edd876d95fd78f6101..92801329065289d0117949368b755e0c99c6144f 100644
--- a/chrome/browser/sync/glue/generic_change_processor.h
+++ b/chrome/browser/sync/glue/generic_change_processor.h
@@ -14,13 +14,11 @@
 #include "chrome/browser/sync/glue/data_type_controller.h"
 #include "chrome/browser/sync/glue/data_type_error_handler.h"
 #include "sync/api/sync_change_processor.h"
+#include "sync/api/sync_data.h"
 #include "sync/api/sync_merge_result.h"
 
 namespace syncer {
-class SyncData;
 class SyncableService;
-
-typedef std::vector<syncer::SyncData> SyncDataList;
 }  // namespace syncer
 
 namespace browser_sync {