Revert 194347

net/disk_cache/simple/simple_index_file.h

Index: net/disk_cache/simple/simple_index_file.h
===================================================================
--- net/disk_cache/simple/simple_index_file.h	(revision 194371)
+++ net/disk_cache/simple/simple_index_file.h	(working copy)
@@ -1,92 +0,0 @@
-// Copyright (c) 2013 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_SIMPLE_SIMPLE_INDEX_FILE_H_
-#define NET_DISK_CACHE_SIMPLE_SIMPLE_INDEX_FILE_H_
-
-#include <string>
-
-#include "base/basictypes.h"
-#include "base/files/file_path.h"
-#include "base/gtest_prod_util.h"
-#include "base/hash_tables.h"
-#include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
-#include "base/pickle.h"
-#include "base/port.h"
-#include "net/base/net_export.h"
-#include "net/disk_cache/simple/simple_index.h"
-
-namespace base {
-class TaskRunner;
-}
-
-namespace disk_cache {
-
-const uint64 kSimpleIndexMagicNumber = GG_UINT64_C(0x656e74657220796f);
-
-// Simple Index File format is a pickle serialized data of IndexMetadata and
-// EntryMetadata objects.  The file format is as follows: one instance of
-// serialized |IndexMetadata| followed serialized |EntryMetadata| entries
-// repeated |number_of_entries| amount of times.  To know more about the format,
-// see SimpleIndexFile::Serialize() and SeeSimpleIndexFile::LoadFromDisk()
-// methods.
-class NET_EXPORT_PRIVATE SimpleIndexFile {
- public:
-  class NET_EXPORT_PRIVATE IndexMetadata {
-   public:
-    IndexMetadata();
-    IndexMetadata(uint64 number_of_entries, uint64 cache_size);
-
-    void Serialize(Pickle* pickle) const;
-    bool Deserialize(PickleIterator* it);
-
-    bool CheckIndexMetadata();
-
-    uint64 GetNumberOfEntries() { return number_of_entries_; }
-
-   private:
-    FRIEND_TEST_ALL_PREFIXES(IndexMetadataTest, Basics);
-    FRIEND_TEST_ALL_PREFIXES(IndexMetadataTest, Serialize);
-
-    uint64 magic_number_;
-    uint32 version_;
-    uint64 number_of_entries_;
-    uint64 cache_size_;  // Total cache storage size in bytes.
-  };
-
-  // Load the index file from disk, deserializing it and returning the
-  // corresponding EntrySet in a scoped_ptr<>, if successful.
-  // Uppon failure, the scoped_ptr<> will contain NULL.
-  static scoped_ptr<SimpleIndex::EntrySet> LoadFromDisk(
-      const base::FilePath& index_filename);
-
-  // Returns a scoped_ptr for a newly allocated Pickle containing the serialized
-  // data to be written to a file.
-  static scoped_ptr<Pickle> Serialize(
-      const SimpleIndexFile::IndexMetadata& index_metadata,
-      const SimpleIndex::EntrySet& entries);
-
-  // Write the serialized data from |pickle| into the index file.
-  static void WriteToDisk(const base::FilePath& index_filename,
-                          const Pickle& pickle);
-
- private:
-  FRIEND_TEST_ALL_PREFIXES(SimpleIndexFileTest, Serialize);
-
-  // Deserialize() is separate from LoadFromDisk() for easier testing.
-  static scoped_ptr<SimpleIndex::EntrySet> Deserialize(const char* data,
-                                                       int data_len);
-
-  struct PickleHeader : public Pickle::Header {
-    uint32 crc;
-  };
-
-  DISALLOW_COPY_AND_ASSIGN(SimpleIndexFile);
-};
-
-
-}  // namespace disk_cache
-
-#endif  // NET_DISK_CACHE_SIMPLE_SIMPLE_INDEX_FILE_H_