Create variations target that depends on base.

chrome/common/metrics/metrics_util.cc

-// Copyright (c) 2012 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.
-
-#include "chrome/common/metrics/metrics_util.h"
-
-#include "base/sha1.h"
-#include "base/sys_byteorder.h"
-
-namespace metrics {
-
-uint32 HashName(const std::string& name) {
-  // SHA-1 is designed to produce a uniformly random spread in its output space,
-  // even for nearly-identical inputs.
-  unsigned char sha1_hash[base::kSHA1Length];
-  base::SHA1HashBytes(reinterpret_cast<const unsigned char*>(name.c_str()),
-                      name.size(),
-                      sha1_hash);
-
-  uint32 bits;
-  COMPILE_ASSERT(sizeof(bits) < sizeof(sha1_hash), need_more_data);
-  memcpy(&bits, sha1_hash, sizeof(bits));
-
-  return base::ByteSwapToLE32(bits);
-}
-
-}  // namespace metrics