Rename ModelType/ObjectIdStateMap to InvalidationMap.

sync/test/engine/syncer_command_test.h

Index: sync/test/engine/syncer_command_test.h
diff --git a/sync/test/engine/syncer_command_test.h b/sync/test/engine/syncer_command_test.h
index 8e1aa14c88f22ed8225b6f7d9c199f09f0fc6f9b..e177a872c6909c3720abdc4f09bf05f983cd9d4a 100644
--- a/sync/test/engine/syncer_command_test.h
+++ b/sync/test/engine/syncer_command_test.h
@@ -100,8 +100,8 @@ class SyncerCommandTestBase : public testing::Test,
 
   // Lazily create a session requesting all datatypes with no state.
   sessions::SyncSession* session() {
-    ModelTypeStateMap types =
-        ModelSafeRoutingInfoToStateMap(routing_info_, std::string());
+    ModelTypeInvalidationMap types =
+        ModelSafeRoutingInfoToInvalidationMap(routing_info_, std::string());
     return session(sessions::SyncSourceInfo(types));
   }