[Sync] Move model_type* from syncable/ to base/

sync/internal_api/public/sessions/sync_session_snapshot.cc

 // Copyright (c) 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.
 
 #include "sync/internal_api/public/sessions/sync_session_snapshot.h"
 
 #include "base/json/json_writer.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/values.h"
 
 namespace syncer {
 namespace sessions {
 
 SyncSessionSnapshot::SyncSessionSnapshot()
     : is_share_usable_(false),
       has_more_to_sync_(false),
       is_silenced_(false),
       num_encryption_conflicts_(0),
@@ skipping 146 matching lines @@
 base::Time SyncSessionSnapshot::sync_start_time() const {
   return sync_start_time_;
 }
 
 bool SyncSessionSnapshot::retry_scheduled() const {
   return retry_scheduled_;
 }
 
 }  // namespace sessions
 }  // namespace syncer