Add "scrypt" to third_party for secure password hashes

third_party/scrypt/chromium.patch

+diff --git a/third_party/scrypt/lib/crypto/crypto_scrypt-nosse.c b/third_party/scrypt/lib/crypto/crypto_scrypt-nosse.c
+index cad4d0e..8adecff 100644
+--- a/third_party/scrypt/lib/crypto/crypto_scrypt-nosse.c
++++ b/third_party/scrypt/lib/crypto/crypto_scrypt-nosse.c
+@@ -29,7 +29,7 @@
+ #include "scrypt_platform.h"
+ 
+ #include <sys/types.h>
+-#include <sys/mman.h>
++//#include <sys/mman.h>  // GOOGLE (not available on all platforms)
+ 
+ #include <errno.h>
+ #include <stdint.h>
+diff --git a/third_party/scrypt/lib/crypto/crypto_scrypt.h b/third_party/scrypt/lib/crypto/crypto_scrypt.h
+index f72e1f4..0b7909a 100644
+--- a/third_party/scrypt/lib/crypto/crypto_scrypt.h
++++ b/third_party/scrypt/lib/crypto/crypto_scrypt.h
+@@ -31,6 +31,11 @@
+ 
+ #include <stdint.h>
+ 
++// GOOGLE
++#ifdef __cplusplus
++extern "C" {
++#endif
++
+ /**
+  * crypto_scrypt(passwd, passwdlen, salt, saltlen, N, r, p, buf, buflen):
+  * Compute scrypt(passwd[0 .. passwdlen - 1], salt[0 .. saltlen - 1], N, r,
+@@ -43,4 +48,9 @@
+ int crypto_scrypt(const uint8_t *, size_t, const uint8_t *, size_t, uint64_t,
+     uint32_t, uint32_t, uint8_t *, size_t);
+ 
++// GOOGLE
++#ifdef __cplusplus
++}
++#endif
++
+ #endif /* !_CRYPTO_SCRYPT_H_ */
+diff --git a/third_party/scrypt/scrypt_platform.h b/third_party/scrypt/scrypt_platform.h
+index 5cec236..e7bc977 100644
+--- a/third_party/scrypt/scrypt_platform.h
++++ b/third_party/scrypt/scrypt_platform.h
+@@ -6,7 +6,7 @@
+ #elif defined(HAVE_CONFIG_H)
+ #include "config.h"
+ #else
+-#error Need either CONFIG_H_FILE or HAVE_CONFIG_H defined.
++/* GOOGLE: assume all defines are done on the command line */
+ #endif
+ 
+ #endif /* !_SCRYPT_PLATFORM_H_ */
+diff --git a/third_party/scrypt/sysendian.h b/third_party/scrypt/sysendian.h
+new file mode 100644
+index 0000000..6b73e9d
+--- /dev/null
++++ b/third_party/scrypt/sysendian.h
+@@ -0,0 +1,42 @@
++/*
++ * Copyright (c) 2012 The Chromium Authors. All rights reserved.
++ * Use of this source code is governed by a BSD-style license.
++ *
++ * Some functions commonly found in sys/endian.h, a header file not available
++ * on Windows platforms.
++ */
++
++#ifndef _SCRYPT_SYSENDIAN_H
++#define _SCRYPT_SYSENDIAN_H
++
++static __inline void be32enc(void *buf, uint32_t u)
++{
++  uint8_t *p = (uint8_t *)buf;
++  p[0] = (uint8_t)((u >> 24) & 0xff);
++  p[1] = (uint8_t)((u >> 16) & 0xff);
++  p[2] = (uint8_t)((u >> 8) & 0xff);
++  p[3] = (uint8_t)(u & 0xff);
++}
++
++static __inline void le32enc(void *buf, uint32_t u)
++{
++  uint8_t *p = (uint8_t *)buf;
++  p[0] = (uint8_t)(u & 0xff);
++  p[1] = (uint8_t)((u >> 8) & 0xff);
++  p[2] = (uint8_t)((u >> 16) & 0xff);
++  p[3] = (uint8_t)((u >> 24) & 0xff);
++}
++
++static __inline uint32_t be32dec(const void *buf)
++{
++  const uint8_t *p = (const uint8_t *)buf;
++  return ((p[0] << 24) | (p[1] << 16) | (p[2] << 8) | p[3]);
++}
++
++static __inline uint32_t le32dec(const void *buf)
++{
++  const uint8_t *p = (const uint8_t *)buf;
++  return ((p[3] << 24) | (p[2] << 16) | (p[1] << 8) | p[0]);
++}
++
++#endif  // _SCRYPT_SYSENDIAN_H