Convert TrackedPreferenceValidationDelegate into a mojo interface.

chrome/browser/prefs/chrome_pref_service_factory.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/prefs/chrome_command_line_pref_store.h>
 #include "chrome/browser/prefs/chrome_pref_service_factory.h"
 
 #include <stddef.h>
 
 #include <string>
@@ skipping 480 matching lines @@
                  new JsonPrefStore(pref_filename, pref_io_task_runner,
                                    std::unique_ptr<PrefFilter>()),
                  NULL,  // extension_prefs
                  async);
   return factory.Create(pref_registry.get());
 }
 
 std::unique_ptr<sync_preferences::PrefServiceSyncable> CreateProfilePrefs(
     const base::FilePath& profile_path,
     base::SequencedTaskRunner* pref_io_task_runner,
-    TrackedPreferenceValidationDelegate* validation_delegate,
+    prefs::mojom::TrackedPreferenceValidationDelegate* validation_delegate,
     policy::PolicyService* policy_service,
     SupervisedUserSettingsService* supervised_user_settings,
     const scoped_refptr<PrefStore>& extension_prefs,
     const scoped_refptr<user_prefs::PrefRegistrySyncable>& pref_registry,
     bool async) {
   TRACE_EVENT0("browser", "chrome_prefs::CreateProfilePrefs");
   SCOPED_UMA_HISTOGRAM_TIMER("PrefService.CreateProfilePrefsTime");
 
   // A StartSyncFlare used to kick sync early in case of a reset event. This is
   // done since sync may bring back the user's server value post-reset which
@@ skipping 39 matching lines @@
 
 void ClearResetTime(Profile* profile) {
   ProfilePrefStoreManager::ClearResetTime(profile->GetPrefs());
 }
 
 void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
   ProfilePrefStoreManager::RegisterProfilePrefs(registry);
 }
 
 }  // namespace chrome_prefs