Reland: Move PVer4 related code from util.* to v4_protocol_manager_util.*

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"
 #include "base/single_thread_task_runner.h"
 #include "components/safe_browsing_db/v4_protocol_manager_util.h"
 
 namespace safe_browsing {
 
 class V4Store;
 
 typedef base::Callback<void(std::unique_ptr<V4Store>)>
     UpdatedStoreReadyCallback;
 
 // The size of the hash prefix, in bytes. It should be between 4 to 32 (full
 // hash).
 typedef size_t PrefixSize;
 
-// A hash prefix sent by the SafeBrowsing PVer4 service.
-typedef std::string HashPrefix;
-
 // The sorted list of hash prefixes.
 typedef std::string HashPrefixes;
 
 // Stores the list of sorted hash prefixes, by size.
 // For instance: {4: ["abcd", "bcde", "cdef", "gggg"], 5: ["fffff"]}
 typedef base::hash_map<PrefixSize, HashPrefixes> HashPrefixMap;
 
 // Stores the iterator to the last element merged from the HashPrefixMap for a
 // given prefix size.
 // For instance: {4:iter(3), 5:iter(1)} means that we have already merged
 // 3 hash prefixes of length 4, and 1 hash prefix of length 5.
 typedef base::hash_map<PrefixSize, HashPrefixes::const_iterator> IteratorMap;
 
-// A full SHA256 hash.
-typedef HashPrefix FullHash;
-
 // Enumerate different failure events while parsing the file read from disk for
 // histogramming purposes.  DO NOT CHANGE THE ORDERING OF THESE VALUES.
 enum StoreReadResult {
   // No errors.
   READ_SUCCESS = 0,
 
   // Reserved for errors in parsing this enum.
   UNEXPECTED_READ_FAILURE = 1,
 
   // The contents of the file could not be read.
@@ skipping 275 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_