sync: Introduce ModelTypeRegistry and helpers

sync/engine/sync_scheduler_impl.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/engine/sync_scheduler_impl.h"
 
 #include <algorithm>
 #include <cstring>
 
 #include "base/auto_reset.h"
@@ skipping 274 matching lines @@
   SDVLOG(2) << "Reconfiguring syncer.";
 
   // Only one configuration is allowed at a time. Verify we're not waiting
   // for a pending configure job.
   DCHECK(!pending_configure_params_);
 
   ModelSafeRoutingInfo restricted_routes;
   BuildModelSafeParams(params.types_to_download,
                        params.routing_info,
                        &restricted_routes);
-  session_context_->set_routing_info(restricted_routes);
+  session_context_->SetRoutingInfo(restricted_routes);
 
   // Only reconfigure if we have types to download.
   if (!params.types_to_download.Empty()) {
     pending_configure_params_.reset(new ConfigurationParams(params));
     TrySyncSessionJob(NORMAL_PRIORITY);
   } else {
     SDVLOG(2) << "No change in routing info, calling ready task directly.";
     params.ready_task.Run();
   }
 }
@@ skipping 596 matching lines @@
 
 #undef SDVLOG_LOC
 
 #undef SDVLOG
 
 #undef SLOG
 
 #undef ENUM_CASE
 
 }  // namespace syncer