Add a size estimation mechanism to StoragePartitionHttpCacheDataRemover.

net/disk_cache/disk_cache_test_base.h

 // 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.
 
 #ifndef NET_DISK_CACHE_DISK_CACHE_TEST_BASE_H_
 #define NET_DISK_CACHE_DISK_CACHE_TEST_BASE_H_
 
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
 #include "base/files/scoped_temp_dir.h"
@@ skipping 110 matching lines @@
     type_ = type;
   }
 
   // Utility methods to access the cache and wait for each operation to finish.
   int OpenEntry(const std::string& key, disk_cache::Entry** entry);
   int CreateEntry(const std::string& key, disk_cache::Entry** entry);
   int DoomEntry(const std::string& key);
   int DoomAllEntries();
   int DoomEntriesBetween(const base::Time initial_time,
                          const base::Time end_time);
+  int CalculateSizeOfAllEntries();
   int DoomEntriesSince(const base::Time initial_time);
   scoped_ptr<TestIterator> CreateIterator();
   void FlushQueueForTest();
   void RunTaskForTest(const base::Closure& closure);
   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);
@@ skipping 38 matching lines @@
 
  private:
   void InitMemoryCache();
   void InitDiskCache();
 
   base::Thread cache_thread_;
   DISALLOW_COPY_AND_ASSIGN(DiskCacheTestWithCache);
 };
 
 #endif  // NET_DISK_CACHE_DISK_CACHE_TEST_BASE_H_