Unlink corrupt SimpleCache index files immediately after load.

net/disk_cache/simple/simple_index_file.h

 // 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 <vector>
 
 #include "base/basictypes.h"
 #include "base/containers/hash_tables.h"
 #include "base/files/file_path.h"
 #include "base/gtest_prod_util.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"
@@ skipping 40 matching lines @@
     uint64 magic_number_;
     uint32 version_;
     uint64 number_of_entries_;
     uint64 cache_size_;  // Total cache storage size in bytes.
   };
 
   typedef base::Callback<void(
       scoped_ptr<SimpleIndex::EntrySet>, bool force_index_flush)>
       IndexCompletionCallback;
 
-  explicit SimpleIndexFile(base::SingleThreadTaskRunner* cache_thread,
-                           base::TaskRunner* worker_pool,
-                           const base::FilePath& index_file_directory);
+  SimpleIndexFile(base::SingleThreadTaskRunner* cache_thread,
+                  base::TaskRunner* worker_pool,
+                  const base::FilePath& index_file_directory);
   virtual ~SimpleIndexFile();
 
   // Get index entries based on current disk context.
   virtual void LoadIndexEntries(
       scoped_refptr<base::SingleThreadTaskRunner> response_thread,
       const SimpleIndexFile::IndexCompletionCallback& completion_callback);
 
   // Write the specified set of entries to disk.
   virtual void WriteToDisk(const SimpleIndex::EntrySet& entry_set,
                            uint64 cache_size,
                            const base::TimeTicks& start,
                            bool app_on_background);
 
   // Doom the entries specified in |entry_hashes|, calling |reply_callback|
   // with the result on the current thread when done.
   virtual void DoomEntrySet(scoped_ptr<std::vector<uint64> > entry_hashes,
                             const base::Callback<void(int)>& reply_callback);
 
  private:
-  FRIEND_TEST_ALL_PREFIXES(SimpleIndexFileTest, IsIndexFileCorrupt);
-  FRIEND_TEST_ALL_PREFIXES(SimpleIndexFileTest, IsIndexFileStale);
-  FRIEND_TEST_ALL_PREFIXES(SimpleIndexFileTest, Serialize);
+  friend class TestSimpleIndexFile;
 
   // Using the mtime of the file and its mtime, detects if the index file is
   // stale.
   static bool IsIndexFileStale(const base::FilePath& index_filename);
 
   // 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);
@@ skipping 26 matching lines @@
 
   static const char kIndexFileName[];
 
   DISALLOW_COPY_AND_ASSIGN(SimpleIndexFile);
 };
 
 
 }  // namespace disk_cache
 
 #endif  // NET_DISK_CACHE_SIMPLE_SIMPLE_INDEX_FILE_H_