Revert of Add PrefStore::GetValues

components/prefs/testing_pref_store.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 "components/prefs/testing_pref_store.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 #include "base/values.h"
 
 TestingPrefStore::TestingPrefStore()
     : read_only_(true),
       read_success_(true),
       read_error_(PersistentPrefStore::PREF_READ_ERROR_NONE),
       block_async_read_(false),
       pending_async_read_(false),
       init_complete_(false),
       committed_(true) {}
 
 bool TestingPrefStore::GetValue(const std::string& key,
                                 const base::Value** value) const {
   return prefs_.GetValue(key, value);
 }
 
-std::unique_ptr<base::DictionaryValue> TestingPrefStore::GetValues() const {
-  return prefs_.AsDictionaryValue();
-}
-
 bool TestingPrefStore::GetMutableValue(const std::string& key,
                                        base::Value** value) {
   return prefs_.GetValue(key, value);
 }
 
 void TestingPrefStore::AddObserver(PrefStore::Observer* observer) {
   observers_.AddObserver(observer);
 }
 
 void TestingPrefStore::RemoveObserver(PrefStore::Observer* observer) {
@@ skipping 142 matching lines @@
   read_success_ = read_success;
 }
 
 void TestingPrefStore::set_read_error(
     PersistentPrefStore::PrefReadError read_error) {
   DCHECK(!init_complete_);
   read_error_ = read_error;
 }
 
 TestingPrefStore::~TestingPrefStore() {}