sync: Initialize entries with a valid model type

sync/internal_api/public/write_node.h

Index: sync/internal_api/public/write_node.h
diff --git a/sync/internal_api/public/write_node.h b/sync/internal_api/public/write_node.h
index 73baa6f53695c43d540ccfc15e6cbbed2139100b..990f0408e19c4aeedaea44d2e28e781ec302ac8b 100644
--- a/sync/internal_api/public/write_node.h
+++ b/sync/internal_api/public/write_node.h
@@ -67,15 +67,12 @@ class SYNC_EXPORT WriteNode : public BaseNode {
       ModelType model_type,
       const std::string& tag) OVERRIDE;
 
-  // Create a new node with the specified parent and predecessor.  |model_type|
-  // dictates the type of the item, and controls which EntitySpecifics proto
-  // extension can be used with this item.  Use a NULL |predecessor|
-  // to indicate that this is to be the first child.
+  // Create a new bookmark node with the specified parent and predecessor.  Use
+  // a NULL |predecessor| to indicate that this is to be the first child.
   // |predecessor| must be a child of |new_parent| or NULL. Returns false on
   // failure.
-  bool InitByCreation(ModelType model_type,
-                      const BaseNode& parent,
-                      const BaseNode* predecessor);
+  bool InitBookmarkByCreation(const BaseNode& parent,
+                              const BaseNode* predecessor);
 
   // Create nodes using this function if they're unique items that
   // you want to fetch using client_tag. Note that the behavior of these
@@ -183,9 +180,6 @@ class SYNC_EXPORT WriteNode : public BaseNode {
 
   void* operator new(size_t size);  // Node is meant for stack use only.
 
-  // Helper to set model type. This will clear any specifics data.
-  void PutModelType(ModelType model_type);
-
   // Helper to set the previous node.
   bool PutPredecessor(const BaseNode* predecessor) WARN_UNUSED_RESULT;