Add BookmarkUndoService to Android build

chrome/browser/sync/glue/bookmark_model_associator.cc

Index: chrome/browser/sync/glue/bookmark_model_associator.cc
diff --git a/chrome/browser/sync/glue/bookmark_model_associator.cc b/chrome/browser/sync/glue/bookmark_model_associator.cc
index c77bf967c75f2f7b100be31979c5c55ab51a5059..69e4a7f091da1a3f2224c248194790d4e62cb89f 100644
--- a/chrome/browser/sync/glue/bookmark_model_associator.cc
+++ b/chrome/browser/sync/glue/bookmark_model_associator.cc
@@ -402,9 +402,8 @@ syncer::SyncError BookmarkModelAssociator::AssociateModels(
     syncer::SyncMergeResult* syncer_merge_result) {
   // Since any changes to the bookmark model made here are not user initiated,
   // these change should not be undoable and so suspend the undo tracking.
-#if !defined(OS_ANDROID)
   ScopedSuspendBookmarkUndo suspend_undo(profile_);
-#endif
+
   syncer::SyncError error = CheckModelSyncState(local_merge_result,
                                                 syncer_merge_result);
   if (error.IsSet())