Remove dependency on server generated type root folders

sync/syncable/model_neutral_mutable_entry.h

 // Copyright 2013 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 SYNC_SYNCABLE_MODEL_NEUTRAL_MUTABLE_ENTRY_H_
 #define SYNC_SYNCABLE_MODEL_NEUTRAL_MUTABLE_ENTRY_H_
 
 #include "sync/base/sync_export.h"
 #include "sync/internal_api/public/base/model_type.h"
 #include "sync/syncable/entry.h"
 
 namespace syncer {
 class WriteNode;
 
 namespace syncable {
 
 class BaseWriteTransaction;
 
 enum CreateNewUpdateItem {
   CREATE_NEW_UPDATE_ITEM
 };
 
+enum CreateNewTypeRoot { CREATE_NEW_TYPE_ROOT };
+
 // This Entry includes all the operations one can safely perform on the sync
 // thread.  In particular, it does not expose setters to make changes that need
 // to be communicated to the model (and the model's thread).  It is not possible
 // to change an entry's SPECIFICS or UNIQUE_POSITION fields with this kind of
 // entry.
 class SYNC_EXPORT_PRIVATE ModelNeutralMutableEntry : public Entry {
  public:
   ModelNeutralMutableEntry(BaseWriteTransaction* trans,
                            CreateNewUpdateItem,
                            const Id& id);
+  ModelNeutralMutableEntry(BaseWriteTransaction* trans,
+                           CreateNewTypeRoot,
+                           ModelType type);
   ModelNeutralMutableEntry(BaseWriteTransaction* trans, GetByHandle, int64);
   ModelNeutralMutableEntry(BaseWriteTransaction* trans, GetById, const Id&);
   ModelNeutralMutableEntry(
       BaseWriteTransaction* trans,
       GetByClientTag,
       const std::string& tag);
   ModelNeutralMutableEntry(
       BaseWriteTransaction* trans,
       GetTypeRoot,
       ModelType type);
@@ skipping 65 matching lines @@
   // Scope: Set on construction, never changed after that.
   BaseWriteTransaction* const base_write_transaction_;
 
   DISALLOW_COPY_AND_ASSIGN(ModelNeutralMutableEntry);
 };
 
 }  // namespace syncable
 }  // namespace syncer
 
 #endif  // SYNC_SYNCABLE_MODEL_NEUTRAL_MUTABLE_ENTRY_H_