Move Courgette from internal depot to third_party.

third_party/courgette/crc.h

Index: third_party/courgette/crc.h
===================================================================
--- third_party/courgette/crc.h	(revision 0)
+++ third_party/courgette/crc.h	(revision 0)
@@ -0,0 +1,17 @@
+// Copyright (c) 2009 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 COURGETTE_CRC_H_
+#define COURGETTE_CRC_H_
+
+#include "base/basictypes.h"
+
+namespace courgette {
+
+// Calculates Crc of the given buffer by calling CRC method in LZMA SDK
+//
+uint32 CalculateCrc(const uint8* buffer, size_t size);
+
+}  // namespace courgette
+#endif  // COURGETTE_CRC_H_