Replace ToLower calls to the new format

chrome/browser/component_updater/supervised_user_whitelist_installer_unittest.cc

 // Copyright 2014 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 "base/bind.h"
 #include "base/callback.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/json/json_file_value_serializer.h"
@@ skipping 241 matching lines @@
 };
 
 TEST_F(SupervisedUserWhitelistInstallerTest, GetHashFromCrxId) {
   {
     std::string extension_id = "abcdefghijklmnopponmlkjihgfedcba";
     ASSERT_EQ(extension_id, CrxIdToHashToCrxId(extension_id));
   }
 
   {
     std::string extension_id = "aBcDeFgHiJkLmNoPpOnMlKjIhGfEdCbA";
-    ASSERT_EQ(base::StringToLowerASCII(extension_id),
+    ASSERT_EQ(base::ToLowerASCII(extension_id),
               CrxIdToHashToCrxId(extension_id));
   }
 
   {
     std::string extension_id = crx_file::id_util::GenerateId("Moose");
     ASSERT_EQ(extension_id, CrxIdToHashToCrxId(extension_id));
   }
 }
 
 TEST_F(SupervisedUserWhitelistInstallerTest, InstallNewWhitelist) {
@@ skipping 77 matching lines @@
   {
     base::RunLoop run_loop;
     installer_->UnregisterWhitelist(kOtherClientId, kCrxId);
     run_loop.RunUntilIdle();
   }
   EXPECT_FALSE(component_update_service_.registered_component());
   EXPECT_FALSE(base::DirectoryExists(whitelist_directory_));
 }
 
 }  // namespace component_updater