Revert of Add PrefStore::GetValues

components/user_prefs/tracked/segregated_pref_store.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/segregated_pref_store.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/stl_util.h"
@@ skipping 65 matching lines @@
 bool SegregatedPrefStore::IsInitializationComplete() const {
   return default_pref_store_->IsInitializationComplete() &&
          selected_pref_store_->IsInitializationComplete();
 }
 
 bool SegregatedPrefStore::GetValue(const std::string& key,
                                    const base::Value** result) const {
   return StoreForKey(key)->GetValue(key, result);
 }
 
-std::unique_ptr<base::DictionaryValue> SegregatedPrefStore::GetValues() const {
-  auto values = default_pref_store_->GetValues();
-  auto selected_pref_store_values = selected_pref_store_->GetValues();
-  for (const auto& key : selected_preference_names_) {
-    const base::Value* value = nullptr;
-    if (selected_pref_store_values->Get(key, &value)) {
-      values->Set(key, value->CreateDeepCopy());
-    } else {
-      values->Remove(key, nullptr);
-    }
-  }
-  return values;
-}
-
 void SegregatedPrefStore::SetValue(const std::string& key,
                                    std::unique_ptr<base::Value> value,
                                    uint32_t flags) {
   StoreForKey(key)->SetValue(key, std::move(value), flags);
 }
 
 void SegregatedPrefStore::RemoveValue(const std::string& key, uint32_t flags) {
   StoreForKey(key)->RemoveValue(key, flags);
 }
 
@@ skipping 75 matching lines @@
       .get();
 }
 
 const PersistentPrefStore* SegregatedPrefStore::StoreForKey(
     const std::string& key) const {
   return (base::ContainsKey(selected_preference_names_, key)
               ? selected_pref_store_
               : default_pref_store_)
       .get();
 }