Remove the alternative preferences filename from JsonPrefStore.

chrome/browser/prefs/tracked/pref_hash_browsertest.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 <memory>
 #include <string>
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
@@ skipping 203 matching lines @@
     return true;
 #endif
 
     base::FilePath profile_dir;
     EXPECT_TRUE(PathService::Get(chrome::DIR_USER_DATA, &profile_dir));
     profile_dir = profile_dir.AppendASCII(TestingProfile::kTestUserProfileDir);
 
     // Sanity check that old protected pref file is never present in modern
     // Chromes.
     EXPECT_FALSE(base::PathExists(
-        profile_dir.Append(chrome::kProtectedPreferencesFilenameDeprecated)));
+        profile_dir.Append(FILE_PATH_LITERAL("Protected Preferences"))));
 
     // Read the preferences from disk.
 
     const base::FilePath unprotected_pref_file =
         profile_dir.Append(chrome::kPreferencesFilename);
     EXPECT_TRUE(base::PathExists(unprotected_pref_file));
 
     const base::FilePath protected_pref_file =
         profile_dir.Append(chrome::kSecurePreferencesFilename);
     EXPECT_EQ(protection_level_ > PROTECTION_DISABLED_ON_PLATFORM,
@@ skipping 1036 matching lines @@
       EXPECT_EQ(DefaultSearchManager::FROM_FALLBACK, dse_source);
       EXPECT_NE(current_dse->keyword(), base::UTF8ToUTF16("badkeyword"));
       EXPECT_NE(current_dse->short_name(), base::UTF8ToUTF16("badname"));
       EXPECT_NE(current_dse->url(),
                 "http://bad_default_engine/search?q=dirty_user_query");
     }
   }
 };
 
 PREF_HASH_BROWSER_TEST(PrefHashBrowserTestDefaultSearch, SearchProtected);