Pref service: add support for tracked prefs.

components/user_prefs/tracked/mock_validation_delegate.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 "components/user_prefs/tracked/mock_validation_delegate.h"
 
 MockValidationDelegateRecord::MockValidationDelegateRecord() = default;
 
 MockValidationDelegateRecord::~MockValidationDelegateRecord() = default;
 
@@ skipping 45 matching lines @@
 MockValidationDelegate::~MockValidationDelegate() = default;
 
 void MockValidationDelegate::OnAtomicPreferenceValidation(
     const std::string& pref_path,
     std::unique_ptr<base::Value> value,
     PrefHashStoreTransaction::ValueState value_state,
     PrefHashStoreTransaction::ValueState external_validation_value_state,
     bool is_personal) {
   record_->RecordValidation(pref_path, value_state,
                             external_validation_value_state, is_personal,
-                            PrefHashFilter::TRACKING_STRATEGY_ATOMIC);
+                            PrefHashFilter::PrefTrackingStrategy::ATOMIC);
 }
 
 void MockValidationDelegate::OnSplitPreferenceValidation(
     const std::string& pref_path,
     const std::vector<std::string>& invalid_keys,
     const std::vector<std::string>& external_validation_invalid_keys,
     PrefHashStoreTransaction::ValueState value_state,
     PrefHashStoreTransaction::ValueState external_validation_value_state,
     bool is_personal) {
   record_->RecordValidation(pref_path, value_state,
                             external_validation_value_state, is_personal,
-                            PrefHashFilter::TRACKING_STRATEGY_SPLIT);
+                            PrefHashFilter::PrefTrackingStrategy::SPLIT);
 }