Migrate IDBDatabaseBackendTest from blink to chromium

content/browser/indexed_db/indexed_db_database_impl.cc

 // Copyright (c) 2013 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 "content/browser/indexed_db/indexed_db_database_impl.h"
 
 #include <math.h>
 #include <vector>
 
 #include "base/auto_reset.h"
@@ skipping 873 matching lines @@
       new IndexedDBKey(current_number, WebIDBKey::NumberType));
 }
 
 static bool UpdateKeyGenerator(
     scoped_refptr<IndexedDBBackingStore> backing_store,
     scoped_refptr<IndexedDBTransaction> transaction,
     int64 database_id,
     int64 object_store_id,
     const IndexedDBKey* key,
     bool check_current) {
-  DCHECK(key && key->type() == WebIDBKey::NumberType);
+  DCHECK(key);
+  DCHECK_EQ(WebIDBKey::NumberType, key->type());
   return backing_store->MaybeUpdateKeyGeneratorCurrentNumber(
       transaction->BackingStoreTransaction(),
       database_id,
       object_store_id,
       static_cast<int64>(floor(key->number())) + 1,
       check_current);
 }
 
 void IndexedDBDatabaseImpl::Put(
     int64 transaction_id,
@@ skipping 909 matching lines @@
 
 void IndexedDBDatabaseImpl::VersionChangeAbortOperation::Perform(
     IndexedDBTransaction* transaction) {
   IDB_TRACE("VersionChangeAbortOperation");
   DCHECK(!transaction);
   database_->metadata_.version = previous_version_;
   database_->metadata_.int_version = previous_int_version_;
 }
 
 }  // namespace content