Port flush_cache tool.

chrome/browser/safe_browsing/safe_browsing_database.h

 // Copyright (c) 2006-2008 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 CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_DATABASE_H_
 #define CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_DATABASE_H_
 
 #include <deque>
 #include <list>
 #include <string>
@@ skipping 71 matching lines @@
 
   // Called when the user's machine has resumed from a lower power state.
   virtual void HandleResume() = 0;
 
   virtual bool UpdateStarted() { return true; }
   virtual void UpdateFinished(bool update_succeeded) {}
 
   virtual std::wstring filename() const { return filename_; }
 
  protected:
+  friend class SafeBrowsingDatabaseTest;
+  FRIEND_TEST(SafeBrowsingDatabase, HashCaching);
+
   static std::wstring BloomFilterFilename(const std::wstring& db_filename);
 
   // Load the bloom filter off disk, or generates one if it doesn't exist.
   virtual void LoadBloomFilter();
 
   // Deletes the on-disk bloom filter, i.e. because it's stale.
   virtual void DeleteBloomFilter();
 
   // Writes the current bloom filter to disk.
   virtual void WriteBloomFilter();
 
   // Implementation specific bloom filter building.
   virtual void BuildBloomFilter() = 0;
 
   // Measuring false positive rate. Call this each time we look in the filter.
   virtual void IncrementBloomFilterReadCount() {}
 
-  // Full hash cache support.
-  FRIEND_TEST(SafeBrowsingDatabase, HashCaching);
-
   typedef struct HashCacheEntry {
     SBFullHash full_hash;
     int list_id;
     int add_chunk_id;
     int sub_chunk_id;
     base::Time received;
   } HashCacheEntry;
 
   typedef std::list<HashCacheEntry> HashList;
   typedef base::hash_map<SBPrefix, HashList> HashCache;
 
   scoped_ptr<HashCache> hash_cache_;
   HashCache* hash_cache() { return hash_cache_.get(); }
 
   // Cache of prefixes that returned empty results (no full hash match).
   typedef std::set<SBPrefix> PrefixCache;
   PrefixCache prefix_miss_cache_;
   PrefixCache* prefix_miss_cache() { return &prefix_miss_cache_; }
 
   std::wstring filename_;
   std::wstring bloom_filter_filename_;
   scoped_refptr<BloomFilter> bloom_filter_;
 };
 
 #endif  // CHROME_BROWSER_SAFE_BROWSING_SAFE_BROWSING_DATABASE_H_