Only set remote id during url node creation.

components/enhanced_bookmarks/enhanced_bookmark_model_observer.h

Index: components/enhanced_bookmarks/enhanced_bookmark_model_observer.h
diff --git a/components/enhanced_bookmarks/enhanced_bookmark_model_observer.h b/components/enhanced_bookmarks/enhanced_bookmark_model_observer.h
new file mode 100644
index 0000000000000000000000000000000000000000..5ebfa16e41795c1e2cf0ece7fbaa69c5e1332b2d
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+++ b/components/enhanced_bookmarks/enhanced_bookmark_model_observer.h
@@ -0,0 +1,43 @@
+// Copyright 2014 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.
+
+#ifndef COMPONENTS_ENHANCED_BOOKMARKS_ENHANCED_BOOKMARK_MODEL_OBSERVER_H_
+#define COMPONENTS_ENHANCED_BOOKMARKS_ENHANCED_BOOKMARK_MODEL_OBSERVER_H_
+
+#include <string>
+
+class BookmarkNode;
+
+namespace enhanced_bookmarks {
+
+class EnhancedBookmarkModelObserver {
+ public:
+  // Called when the model has finished loading.
+  virtual void EnhancedBookmarkModelLoaded() = 0;
+
+  // Called from EnhancedBookmarkModel::ShutDown.
+  virtual void EnhancedBookmarkModelShuttingDown() = 0;
+
+  // Called when a node is added to the model.
+  virtual void EnhancedBookmarkAdded(const BookmarkNode* node) = 0;
+
+  // Called when a node is removed from the model.
+  virtual void EnhancedBookmarkRemoved(const BookmarkNode* node) = 0;
+
+  // Called when all user editable nodes are removed from the model.
+  virtual void EnhancedBookmarkAllUserNodesRemoved() = 0;
+
+  // Called when the remote id of a node changes. If |remote_id| is empty, the
+  // remote id has been cleared. This could happen if multiple nodes with the
+  // same remote id has been detected.
+  virtual void EnhancedBookmarkRemoteIdChanged(const BookmarkNode* node,
+                                               const std::string& old_remote_id,
+                                               const std::string& remote_id) {};
+
+ protected:
+  virtual ~EnhancedBookmarkModelObserver() {}
+};
+
+}  // namespace enhanced_bookmarks
+#endif  // COMPONENTS_ENHANCED_BOOKMARKS_ENHANCED_BOOKMARK_MODEL_OBSERVER_H_