1 files changed, 31 insertions, 0 deletions
diff --git a/chromium/net/disk_cache/blockfile/file_block.h b/chromium/net/disk_cache/blockfile/file_block.h
new file mode 100644
index 00000000000..fdcfcd05f51
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+++ b/chromium/net/disk_cache/blockfile/file_block.h
@@ -0,0 +1,31 @@
+// Copyright (c) 2006-2008 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.
+
+// See net/disk_cache/disk_cache.h for the public interface of the cache.
+
+#ifndef NET_DISK_CACHE_BLOCKFILE_FILE_BLOCK_H_
+#define NET_DISK_CACHE_BLOCKFILE_FILE_BLOCK_H_
+
+namespace disk_cache {
+
+// This interface exposes common functionality for a single block of data
+// stored on a file-block, regardless of the real type or size of the block.
+// Used to simplify loading / storing the block from disk.
+class FileBlock {
+ public:
+  virtual ~FileBlock() {}
+
+  // Returns a pointer to the actual data.
+  virtual void* buffer() const = 0;
+
+  // Returns the size of the block;
+  virtual size_t size() const = 0;
+
+  // Returns the file offset of this block.
+  virtual int offset() const = 0;
+};
+
+}  // namespace disk_cache
+
+#endif  // NET_DISK_CACHE_BLOCKFILE_FILE_BLOCK_H_