DCHECK that full hash must be 21 bytes or 32 bytes long.

components/safe_browsing_db/v4_store.h

 // Copyright 2016 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.
 
 #ifndef COMPONENTS_SAFE_BROWSING_DB_V4_STORE_H_
 #define COMPONENTS_SAFE_BROWSING_DB_V4_STORE_H_
 
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/sequenced_task_runner.h"
@@ skipping 249 matching lines @@
                            TestHashPrefixDoesNotExistInConcatenatedList);
   FRIEND_TEST_ALL_PREFIXES(V4StoreTest, TestFullHashExistsInMapWithSingleSize);
   FRIEND_TEST_ALL_PREFIXES(V4StoreTest,
                            TestFullHashExistsInMapWithDifferentSizes);
   FRIEND_TEST_ALL_PREFIXES(V4StoreTest,
                            TestHashPrefixExistsInMapWithSingleSize);
   FRIEND_TEST_ALL_PREFIXES(V4StoreTest,
                            TestHashPrefixExistsInMapWithDifferentSizes);
   FRIEND_TEST_ALL_PREFIXES(V4StoreTest,
                            TestHashPrefixDoesNotExistInMapWithDifferentSizes);
+  FRIEND_TEST_ALL_PREFIXES(V4StoreTest, GetMatchingHashPrefixSize32Or21);
   FRIEND_TEST_ALL_PREFIXES(V4StoreTest,
                            TestAdditionsWithRiceEncodingFailsWithInvalidInput);
   FRIEND_TEST_ALL_PREFIXES(V4StoreTest, TestAdditionsWithRiceEncodingSucceeds);
   FRIEND_TEST_ALL_PREFIXES(V4StoreTest, TestRemovalsWithRiceEncodingSucceeds);
   FRIEND_TEST_ALL_PREFIXES(V4StoreTest, TestMergeUpdatesFailsChecksum);
   FRIEND_TEST_ALL_PREFIXES(V4StoreTest, TestChecksumErrorOnStartup);
   FRIEND_TEST_ALL_PREFIXES(V4StoreTest, WriteToDiskFails);
   FRIEND_TEST_ALL_PREFIXES(V4StoreTest, FullUpdateFailsChecksumSynchronously);
   friend class V4StoreTest;
 
@@ skipping 127 matching lines @@
   const base::FilePath store_path_;
   HashPrefixMap hash_prefix_map_;
   const scoped_refptr<base::SequencedTaskRunner> task_runner_;
 };
 
 std::ostream& operator<<(std::ostream& os, const V4Store& store);
 
 }  // namespace safe_browsing
 
 #endif  // COMPONENTS_SAFE_BROWSING_DB_V4_STORE_H_