Add utf_string_conversions to base namespace.

chrome/installer/util/self_cleaning_temp_dir_unittest.cc

 // Copyright (c) 2011 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 <windows.h>
 #include <wincrypt.h>
 
 #include "base/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/strings/string_number_conversions.h"
@@ skipping 16 matching lines @@
   EXPECT_NE(FALSE, CryptGenRandom(crypt_ctx, arraysize(data), &data[0]));
   EXPECT_NE(FALSE, CryptReleaseContext(crypt_ctx, 0));
 
   // Hexify the value.
   std::string result(base::HexEncode(&data[0], arraysize(data)));
   EXPECT_EQ(8, result.size());
 
   // Replace the first digit with the letter 'R' (for "random", get it?).
   result[0] = 'R';
 
-  return ASCIIToWide(result);
+  return base::ASCIIToWide(result);
 }
 
 }  // namespace
 
 namespace installer {
 
 class SelfCleaningTempDirTest : public testing::Test {
 };
 
 // Test the implementation of GetTopDirToCreate when given the root of a
@@ skipping 116 matching lines @@
               file_util::WriteFile(parent_temp_dir.Append(GetRandomFilename()),
                                    kHiHon, arraysize(kHiHon) - 1));
   }
   EXPECT_FALSE(file_util::DirectoryExists(parent_temp_dir.Append(L"Three")));
   EXPECT_TRUE(file_util::DirectoryExists(parent_temp_dir));
   EXPECT_TRUE(work_dir.Delete());
   EXPECT_FALSE(file_util::DirectoryExists(parent_temp_dir.DirName().DirName()));
 }
 
 }  // namespace installer