Add PrefStore::GetValues

components/prefs/in_memory_pref_store.cc

 // Copyright (c) 2016 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/prefs/in_memory_pref_store.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/values.h"
 
 InMemoryPrefStore::InMemoryPrefStore() {}
 
 InMemoryPrefStore::~InMemoryPrefStore() {}
 
 bool InMemoryPrefStore::GetValue(const std::string& key,
                                  const base::Value** value) const {
   return prefs_.GetValue(key, value);
 }
 
+std::unique_ptr<base::DictionaryValue> InMemoryPrefStore::GetValues() const {
+  return prefs_.AsDictionaryValue();
+}
+
 bool InMemoryPrefStore::GetMutableValue(const std::string& key,
                                         base::Value** value) {
   return prefs_.GetValue(key, value);
 }
 
 void InMemoryPrefStore::AddObserver(PrefStore::Observer* observer) {
   observers_.AddObserver(observer);
 }
 
 void InMemoryPrefStore::RemoveObserver(PrefStore::Observer* observer) {
@@ skipping 37 matching lines @@
 
 PersistentPrefStore::PrefReadError InMemoryPrefStore::ReadPrefs() {
   return PersistentPrefStore::PREF_READ_ERROR_NONE;
 }
 
 void InMemoryPrefStore::ReportValueChanged(const std::string& key,
                                            uint32_t flags) {
   for (Observer& observer : observers_)
     observer.OnPrefValueChanged(key);
 }