Move StringToLowerASCII to base namespace

extensions/common/id_util.cc

 // Copyright (c) 2013 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 "extensions/common/id_util.h"
 
 #include "base/files/file_path.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
 #include "crypto/sha2.h"
@@ skipping 21 matching lines @@
 
 namespace extensions {
 namespace id_util {
 
 // First 16 bytes of SHA256 hashed public key.
 const size_t kIdSize = 16;
 
 std::string GenerateId(const std::string& input) {
   uint8 hash[kIdSize];
   crypto::SHA256HashString(input, hash, sizeof(hash));
-  std::string output = StringToLowerASCII(base::HexEncode(hash, sizeof(hash)));
+  std::string output =
+      base::StringToLowerASCII(base::HexEncode(hash, sizeof(hash)));
   ConvertHexadecimalToIDAlphabet(&output);
 
   return output;
 }
 
 std::string GenerateIdForPath(const base::FilePath& path) {
   base::FilePath new_path = MaybeNormalizePath(path);
   std::string path_bytes =
       std::string(reinterpret_cast<const char*>(new_path.value().data()),
                   new_path.value().size() * sizeof(base::FilePath::CharType));
@@ skipping 11 matching lines @@
     path_str[0] = towupper(path_str[0]);
 
   return base::FilePath(path_str);
 #else
   return path;
 #endif
 }
 
 }  // namespace id_util
 }  // namespace extensions