Disk cache: Prevent obscure file corruption and deal...

net/disk_cache/disk_cache_test_base.h

 // Copyright (c) 2006-2010 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_DISK_CACHE_TEST_BASE_H_
 #define NET_DISK_CACHE_DISK_CACHE_TEST_BASE_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/threading/thread.h"
@@ skipping 94 matching lines @@
   void RunTaskForTest(Task* task);
   int ReadData(disk_cache::Entry* entry, int index, int offset,
                net::IOBuffer* buf, int len);
   int WriteData(disk_cache::Entry* entry, int index, int offset,
                 net::IOBuffer* buf, int len, bool truncate);
   int ReadSparseData(disk_cache::Entry* entry, int64 offset, net::IOBuffer* buf,
                      int len);
   int WriteSparseData(disk_cache::Entry* entry, int64 offset,
                       net::IOBuffer* buf, int len);
 
+  // Asks the cache to trim a an entry. If |empty| is true, the whole entry is
+  // deleted.
+  void TrimForTest(bool empty);
+
+  // Asks the cache to trim a an entry from the deleted list. If |empty| is
+  // true, the whole entry is deleted.
+  void TrimDeletedListForTest(bool empty);
+
   // cache_ will always have a valid object, regardless of how the cache was
   // initialized. The implementation pointers can be NULL.
   disk_cache::Backend* cache_;
   disk_cache::BackendImpl* cache_impl_;
   disk_cache::MemBackendImpl* mem_cache_;
 
   uint32 mask_;
   int size_;
   net::CacheType type_;
   bool memory_only_;
   bool implementation_;
   bool force_creation_;
   bool new_eviction_;
   bool first_cleanup_;
   bool integrity_;
   bool use_current_thread_;
   // This is intentionally left uninitialized, to be used by any test.
   bool success_;
 
  private:
   void InitMemoryCache();
   void InitDiskCache();
   void InitDiskCacheImpl(const FilePath& path);
 
   base::Thread cache_thread_;
   DISALLOW_COPY_AND_ASSIGN(DiskCacheTestWithCache);
 };
 
 #endif  // NET_DISK_CACHE_DISK_CACHE_TEST_BASE_H_