Disk cache: Stop evictions while performing final cleanup....

net/disk_cache/eviction.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 NET_DISK_CACHE_EVICTION_H_
 #define NET_DISK_CACHE_EVICTION_H_
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/task.h"
 #include "net/disk_cache/disk_format.h"
 #include "net/disk_cache/rankings.h"
 
 namespace disk_cache {
 
 class BackendImpl;
 class EntryImpl;
 
 // This class implements the eviction algorithm for the cache and it is tightly
 // integrated with BackendImpl.
 class Eviction {
  public:
-  Eviction() : backend_(NULL), ALLOW_THIS_IN_INITIALIZER_LIST(factory_(this)) {}
+  Eviction()
+      : backend_(NULL), init_(false),
+        ALLOW_THIS_IN_INITIALIZER_LIST(factory_(this)) {}
   ~Eviction() {}
 
   void Init(BackendImpl* backend);
+  void Stop();
 
   // Deletes entries from the cache until the current size is below the limit.
   // If empty is true, the whole cache will be trimmed, regardless of being in
   // use.
   void TrimCache(bool empty);
 
   // Updates the ranking information for an entry.
   void UpdateRank(EntryImpl* entry, bool modified);
 
   // Notifications of interesting events for a given entry.
@@ skipping 29 matching lines @@
 
   BackendImpl* backend_;
   Rankings* rankings_;
   IndexHeader* header_;
   int max_size_;
   int trim_delays_;
   bool new_eviction_;
   bool first_trim_;
   bool trimming_;
   bool delay_trim_;
+  bool init_;
   ScopedRunnableMethodFactory<Eviction> factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Eviction);
 };
 
 }  // namespace disk_cache
 
 #endif  // NET_DISK_CACHE_EVICTION_H_