base: Remove the string logging from CHECK().

components/sync/engine_impl/loopback_server/persistent_tombstone_entity.cc

 // Copyright 2014 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 "components/sync/engine_impl/loopback_server/persistent_tombstone_entity.h"
 
 #include <memory>
 #include <string>
 
 #include "components/sync/base/model_type.h"
 #include "components/sync/engine_impl/loopback_server/loopback_server_entity.h"
 #include "components/sync/protocol/sync.pb.h"
 
 using std::string;
 
 using syncer::ModelType;
 
 namespace syncer {
 
 PersistentTombstoneEntity::~PersistentTombstoneEntity() {}
 
 // static
 std::unique_ptr<LoopbackServerEntity> PersistentTombstoneEntity::Create(
     const sync_pb::SyncEntity& entity) {
   const ModelType model_type = GetModelTypeFromId(entity.id_string());
-  CHECK_NE(model_type, syncer::UNSPECIFIED) << "Invalid ID was given: "
-                                            << entity.id_string();
+  // Invalid ID was given.
+  CHECK_NE(model_type, syncer::UNSPECIFIED);
   return std::unique_ptr<LoopbackServerEntity>(new PersistentTombstoneEntity(
       entity.id_string(), entity.version(), model_type));
 }
 
 PersistentTombstoneEntity::PersistentTombstoneEntity(
     const string& id,
     int64_t version,
     const ModelType& model_type)
     : LoopbackServerEntity(id, model_type, version, string()) {
   sync_pb::EntitySpecifics specifics;
@@ skipping 17 matching lines @@
 bool PersistentTombstoneEntity::IsDeleted() const {
   return true;
 }
 
 sync_pb::LoopbackServerEntity_Type
 PersistentTombstoneEntity::GetLoopbackServerEntityType() const {
   return sync_pb::LoopbackServerEntity_Type_TOMBSTONE;
 }
 
 }  // namespace syncer