[Sync] Move GenerateSyncableHash to base.

components/sync/syncable/syncable_util.h

 // Copyright 2012 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_SYNC_SYNCABLE_SYNCABLE_UTIL_H_
 #define COMPONENTS_SYNC_SYNCABLE_SYNCABLE_UTIL_H_
 
 #include <stdint.h>
 
-#include <string>
 #include <vector>
 
-#include "components/sync/base/model_type.h"
-
 namespace tracked_objects {
 class Location;
 }
 
 namespace syncer {
 namespace syncable {
 
 class BaseTransaction;
 class BaseWriteTransaction;
 class ModelNeutralMutableEntry;
 class Id;
 
 void ChangeEntryIDAndUpdateChildren(BaseWriteTransaction* trans,
                                     ModelNeutralMutableEntry* entry,
                                     const Id& new_id);
 
 bool IsLegalNewParent(BaseTransaction* trans, const Id& id, const Id& parentid);
 
 bool SyncAssert(bool condition,
                 const tracked_objects::Location& location,
                 const char* msg,
                 BaseTransaction* trans);
 
 int GetUnsyncedEntries(BaseTransaction* trans, std::vector<int64_t>* handles);
 
-// Generates a fixed-length tag for the given string under the given model_type.
-std::string GenerateSyncableHash(ModelType model_type,
-                                 const std::string& client_tag);
-
-// A helper for generating the bookmark type's tag.  This is required in more
-// than one place, so we define the algorithm here to make sure the
-// implementation is consistent.
-std::string GenerateSyncableBookmarkHash(
-    const std::string& originator_cache_guid,
-    const std::string& originator_client_item_id);
-
 }  // namespace syncable
 }  // namespace syncer
 
 #endif  // COMPONENTS_SYNC_SYNCABLE_SYNCABLE_UTIL_H_