sync: Introduce ModelTypeRegistry and helpers

sync/engine/syncer_unittest.cc

 // 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.
 //
 // Syncer unit tests. Unfortunately a lot of these tests
 // are outdated and need to be reworked and updated.
 
 #include <algorithm>
 #include <limits>
 #include <list>
@@ skipping 215 matching lines @@
     GetWorkers(&workers);
 
     context_.reset(
         new SyncSessionContext(
             mock_server_.get(), directory(), workers,
             extensions_activity_,
             listeners, debug_info_getter_.get(), &traffic_recorder_,
             true,  // enable keystore encryption
             false,  // force enable pre-commit GU avoidance experiment
             "fake_invalidator_client_id"));
-    context_->set_routing_info(routing_info);
+    context_->SetRoutingInfo(routing_info);
     syncer_ = new Syncer(&cancelation_signal_);
 
     syncable::ReadTransaction trans(FROM_HERE, directory());
     syncable::Directory::Metahandles children;
     directory()->GetChildHandlesById(&trans, trans.root_id(), &children);
     ASSERT_EQ(0u, children.size());
     saw_syncer_event_ = false;
     root_id_ = TestIdFactory::root();
     parent_id_ = ids_.MakeServer("parent id");
     child_id_ = ids_.MakeServer("child id");
@@ skipping 188 matching lines @@
     return entry.GetMetahandle();
   }
 
   void EnableDatatype(ModelType model_type) {
     enabled_datatypes_.Put(model_type);
 
     ModelSafeRoutingInfo routing_info;
     GetModelSafeRoutingInfo(&routing_info);
 
     if (context_) {
-      context_->set_routing_info(routing_info);
+      context_->SetRoutingInfo(routing_info);
     }
 
     mock_server_->ExpectGetUpdatesRequestTypes(enabled_datatypes_);
   }
 
   void DisableDatatype(ModelType model_type) {
     enabled_datatypes_.Remove(model_type);
 
     ModelSafeRoutingInfo routing_info;
     GetModelSafeRoutingInfo(&routing_info);
 
     if (context_) {
-      context_->set_routing_info(routing_info);
+      context_->SetRoutingInfo(routing_info);
     }
 
     mock_server_->ExpectGetUpdatesRequestTypes(enabled_datatypes_);
   }
 
   Cryptographer* GetCryptographer(syncable::BaseTransaction* trans) {
     return directory()->GetCryptographer(trans);
   }
 
   // Configures SyncSessionContext and NudgeTracker so Syncer won't call
@@ skipping 4333 matching lines @@
     EXPECT_EQ("xyz", final_monitor_records["xyz"].extension_id);
     EXPECT_EQ(2049U, final_monitor_records["ABC"].bookmark_write_count);
     EXPECT_EQ(4U,    final_monitor_records["xyz"].bookmark_write_count);
   } else {
     EXPECT_TRUE(final_monitor_records.empty())
         << "Should not restore records after successful bookmark commit.";
   }
 }
 
 }  // namespace syncer