Clean up PrefServiceBuilder

chrome/browser/prefs/pref_service_mock_builder.cc

Index: chrome/browser/prefs/pref_service_mock_builder.cc
diff --git a/chrome/browser/prefs/pref_service_mock_builder.cc b/chrome/browser/prefs/pref_service_mock_builder.cc
index 7480b6b38867c77f733e73ae63f7de50825d2c88..a4fcb2941f46849a0f0a1359b7d8e7cdddd3c2bc 100644
--- a/chrome/browser/prefs/pref_service_mock_builder.cc
+++ b/chrome/browser/prefs/pref_service_mock_builder.cc
@@ -5,26 +5,9 @@
 #include "chrome/browser/prefs/pref_service_mock_builder.h"
 
 #include "base/prefs/testing_pref_store.h"
-#include "components/user_prefs/pref_registry_syncable.h"
 
 PrefServiceMockBuilder::PrefServiceMockBuilder() {
-  ResetDefaultState();
+    user_prefs_ = new TestingPrefStore;
 }
 
 PrefServiceMockBuilder::~PrefServiceMockBuilder() {}
-
-PrefService* PrefServiceMockBuilder::Create(PrefRegistry* pref_registry) {
-  PrefService* service = PrefServiceBuilder::Create(pref_registry);
-  return service;
-}
-
-PrefServiceSyncable* PrefServiceMockBuilder::CreateSyncable(
-    user_prefs::PrefRegistrySyncable* pref_registry) {
-  PrefServiceSyncable* service =
-      PrefServiceSyncableBuilder::CreateSyncable(pref_registry);
-  return service;
-}
-
-void PrefServiceMockBuilder::ResetDefaultState() {
-  user_prefs_ = new TestingPrefStore;
-}