Disk Cache: Avoid discarding more deleted entries

net/disk_cache/eviction.h

 // Copyright (c) 2011 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 NET_DISK_CACHE_EVICTION_H_
 #define NET_DISK_CACHE_EVICTION_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 30 matching lines @@
   void OnDestroyEntry(EntryImpl* entry);
 
   // Testing interface.
   void SetTestMode();
   void TrimDeletedList(bool empty);
 
  private:
   void PostDelayedTrim();
   void DelayedTrim();
   bool ShouldTrim();
+  bool ShouldTrimDeleted();
   void ReportTrimTimes(EntryImpl* entry);
   Rankings::List GetListForEntry(EntryImpl* entry);
   bool EvictEntry(CacheRankingsBlock* node, bool empty, Rankings::List list);
 
   // We'll just keep for a while a separate set of methods that implement the
   // new eviction algorithm. This code will replace the original methods when
   // finished.
   void TrimCacheV2(bool empty);
   void UpdateRankV2(EntryImpl* entry, bool modified);
   void OnOpenEntryV2(EntryImpl* entry);
@@ skipping 21 matching lines @@
   bool test_mode_;
   bool in_experiment_;
   base::WeakPtrFactory<Eviction> ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Eviction);
 };
 
 }  // namespace disk_cache
 
 #endif  // NET_DISK_CACHE_EVICTION_H_