Use a direct include of strings headers in chrome/browser/r*-s*/.

chrome/browser/safe_browsing/safe_browsing_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/browser/safe_browsing/safe_browsing_util.h"
 
 #include "base/logging.h"
-#include "base/string_util.h"
-#include "base/stringprintf.h"
+#include "base/strings/string_util.h"
+#include "base/strings/stringprintf.h"
 #include "chrome/browser/google/google_util.h"
 #include "crypto/sha2.h"
 #include "googleurl/src/gurl.h"
 #include "googleurl/src/url_util.h"
 #include "net/base/escape.h"
 
 #if defined(OS_WIN)
 #include "chrome/installer/util/browser_distribution.h"
 #endif
 
@@ skipping 495 matching lines @@
   memcpy(hash_out.full_hash, hash_in.data(), crypto::kSHA256Length);
   return hash_out;
 }
 
 std::string SBFullHashToString(const SBFullHash& hash) {
   DCHECK_EQ(crypto::kSHA256Length, sizeof(hash.full_hash));
   return std::string(hash.full_hash, sizeof(hash.full_hash));
 }
 
 }  // namespace safe_browsing_util