leveldb: Reuse manifest (AKA logs) during open.

storage/browser/fileapi/sandbox_origin_database.cc

 // Copyright (c) 2012 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 "storage/browser/fileapi/sandbox_origin_database.h"
 
 #include <set>
 #include <utility>
 
 #include "base/files/file_enumerator.h"
 #include "base/files/file_util.h"
 #include "base/format_macros.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/metrics/histogram.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
 #include "storage/common/fileapi/file_system_util.h"
+#include "third_party/leveldatabase/env_chromium.h"
 #include "third_party/leveldatabase/src/include/leveldb/db.h"
 #include "third_party/leveldatabase/src/include/leveldb/write_batch.h"
 
 namespace {
 
 const base::FilePath::CharType kOriginDatabaseName[] =
     FILE_PATH_LITERAL("Origins");
 const char kOriginKeyPrefix[] = "ORIGIN:";
 const char kLastPathKey[] = "LAST_PATH";
 const int64 kMinimumReportIntervalHours = 1;
@@ skipping 43 matching lines @@
     return true;
 
   base::FilePath db_path = GetDatabasePath();
   if (init_option == FAIL_IF_NONEXISTENT && !base::PathExists(db_path))
     return false;
 
   std::string path = FilePathToString(db_path);
   leveldb::Options options;
   options.max_open_files = 0;  // Use minimum.
   options.create_if_missing = true;
+  options.reuse_logs = leveldb_env::kDefaultLogReuseOptionValue;
   if (env_override_)
     options.env = env_override_;
   leveldb::DB* db;
   leveldb::Status status = leveldb::DB::Open(options, path, &db);
   ReportInitStatus(status);
   if (status.ok()) {
     db_.reset(db);
     return true;
   }
   HandleError(FROM_HERE, status);
@@ skipping 245 matching lines @@
       db_->Put(leveldb::WriteOptions(), LastPathKey(), std::string("-1"));
   if (!status.ok()) {
     HandleError(FROM_HERE, status);
     return false;
   }
   *number = -1;
   return true;
 }
 
 }  // namespace storage