Simple Cache: validate lengths before allocations.

net/disk_cache/simple/simple_synchronous_entry.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_SYNCHRONOUS_ENTRY_H_
 #define NET_DISK_CACHE_SIMPLE_SIMPLE_SYNCHRONOUS_ENTRY_H_
 
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 261 matching lines @@
       int file_size,
       SimpleEntryStat* out_entry_stat,
       scoped_refptr<net::GrowableIOBuffer>* stream_0_data,
       uint32_t* out_stream_0_crc32);
 
   int GetEOFRecordData(int index,
                        const SimpleEntryStat& entry_stat,
                        bool* out_has_crc32,
                        bool* out_has_key_sha256,
                        uint32_t* out_crc32,
-                       int* out_data_size) const;
+                       int32_t* out_data_size) const;
   void Doom() const;
 
   // Opens the sparse data file and scans it if it exists.
   bool OpenSparseFileIfExists(int32_t* out_sparse_data_size);
 
   // Creates and initializes the sparse data file.
   bool CreateSparseFile();
 
   // Closes the sparse data file.
   void CloseSparseFile();
@@ skipping 69 matching lines @@
   int64_t sparse_tail_offset_;
 
   // True if the entry was created, or false if it was opened. Used to log
   // SimpleCache.*.EntryCreatedWithStream2Omitted only for created entries.
   bool files_created_;
 };
 
 }  // namespace disk_cache
 
 #endif  // NET_DISK_CACHE_SIMPLE_SIMPLE_SYNCHRONOUS_ENTRY_H_