1 files changed, 54 insertions, 0 deletions
diff --git a/chromium/components/sync_bookmarks/bookmark_sync_service.cc b/chromium/components/sync_bookmarks/bookmark_sync_service.cc
new file mode 100644
index 00000000000..8a3d8e509e2
--- /dev/null
+++ b/chromium/components/sync_bookmarks/bookmark_sync_service.cc
@@ -0,0 +1,54 @@
+// Copyright 2018 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 "components/sync_bookmarks/bookmark_sync_service.h"
+
+#include "base/feature_list.h"
+#include "components/sync/driver/sync_driver_switches.h"
+#include "components/sync_bookmarks/bookmark_model_type_processor.h"
+#include "components/undo/bookmark_undo_service.h"
+
+namespace sync_bookmarks {
+
+BookmarkSyncService::BookmarkSyncService(
+    BookmarkUndoService* bookmark_undo_service) {
+  if (base::FeatureList::IsEnabled(switches::kSyncUSSBookmarks)) {
+    bookmark_model_type_processor_ =
+        std::make_unique<sync_bookmarks::BookmarkModelTypeProcessor>(
+            bookmark_undo_service);
+  }
+}
+
+BookmarkSyncService::~BookmarkSyncService() {}
+
+void BookmarkSyncService::Shutdown() {
+  bookmark_model_type_processor_.reset();
+}
+
+std::string BookmarkSyncService::EncodeBookmarkSyncMetadata() {
+  if (!bookmark_model_type_processor_) {
+    return std::string();
+  }
+  return bookmark_model_type_processor_->EncodeSyncMetadata();
+}
+
+void BookmarkSyncService::DecodeBookmarkSyncMetadata(
+    const std::string& metadata_str,
+    const base::RepeatingClosure& schedule_save_closure,
+    bookmarks::BookmarkModel* model) {
+  if (bookmark_model_type_processor_) {
+    bookmark_model_type_processor_->ModelReadyToSync(
+        metadata_str, schedule_save_closure, model);
+  }
+}
+
+base::WeakPtr<syncer::ModelTypeControllerDelegate>
+BookmarkSyncService::GetBookmarkSyncControllerDelegateOnUIThread() {
+  if (!bookmark_model_type_processor_) {
+    return nullptr;
+  }
+  return bookmark_model_type_processor_->GetWeakPtr();
+}
+
+}  // namespace sync_bookmarks