Switch database/file_identifier to std::string, remove createFromDatabaseIdentifier calls

content/browser/indexed_db/indexed_db_cleanup_on_io_error_unittest.cc

Index: content/browser/indexed_db/indexed_db_cleanup_on_io_error_unittest.cc
diff --git a/content/browser/indexed_db/indexed_db_cleanup_on_io_error_unittest.cc b/content/browser/indexed_db/indexed_db_cleanup_on_io_error_unittest.cc
index 6d52e8ad56b28f7a6e900557757f98ba58834cd1..4a7151878c31032042181ab26d1b903ffcc7adaf 100644
--- a/content/browser/indexed_db/indexed_db_cleanup_on_io_error_unittest.cc
+++ b/content/browser/indexed_db/indexed_db_cleanup_on_io_error_unittest.cc
@@ -58,15 +58,14 @@ class MockLevelDBFactory : public LevelDBFactory {
 };
 
 TEST(IndexedDBIOErrorTest, CleanUpTest) {
-  WebSecurityOrigin origin(
-      WebSecurityOrigin::createFromString("http://localhost:81"));
+  std::string origin_identifier("http_localhost_81");
   base::ScopedTempDir temp_directory;
   ASSERT_TRUE(temp_directory.CreateUniqueTempDir());
   const base::FilePath path = temp_directory.path();
-  string16 dummy_file_identifier;
+  std::string dummy_file_identifier;
   MockLevelDBFactory mock_leveldb_factory;
   scoped_refptr<IndexedDBBackingStore> backing_store =
-      IndexedDBBackingStore::Open(origin.databaseIdentifier(),
+      IndexedDBBackingStore::Open(origin_identifier,
                                   path,
                                   dummy_file_identifier,
                                   &mock_leveldb_factory);