Prepare to abstract PersistedData by making it part of the configurator.

components/update_client/test_configurator.cc

Index: components/update_client/test_configurator.cc
diff --git a/components/update_client/test_configurator.cc b/components/update_client/test_configurator.cc
index b2bf95ddccb1ed233d802af4be81e215b5da866d..ced5066189bd761b00795084b6162293b8ed62c2 100644
--- a/components/update_client/test_configurator.cc
+++ b/components/update_client/test_configurator.cc
@@ -9,6 +9,7 @@
 #include "base/version.h"
 #include "components/prefs/pref_service.h"
 #include "components/update_client/out_of_process_patcher.h"
+#include "components/update_client/persisted_data.h"
 #include "net/url_request/url_request_test_util.h"
 #include "url/gurl.h"
 
@@ -34,6 +35,7 @@ TestConfigurator::TestConfigurator(
       ondemand_time_(0),
       enabled_cup_signing_(false),
       enabled_component_updates_(true),
+      pref_(nullptr),
       context_(new net::TestURLRequestContextGetter(network_task_runner)) {}
 
 TestConfigurator::~TestConfigurator() {
@@ -161,6 +163,10 @@ void TestConfigurator::SetPingUrl(const GURL& url) {
   ping_url_ = url;
 }
 
+void TestConfigurator::SetPrefService(PrefService* pref) {
+  pref_ = pref;
+}
+
 scoped_refptr<base::SequencedTaskRunner>
 TestConfigurator::GetSequencedTaskRunner() const {
   DCHECK(worker_task_runner_.get());
@@ -168,11 +174,15 @@ TestConfigurator::GetSequencedTaskRunner() const {
 }
 
 PrefService* TestConfigurator::GetPrefService() const {
-  return nullptr;
+  return pref_;
 }
 
 bool TestConfigurator::IsPerUserInstall() const {
   return true;
 }
 
+std::unique_ptr<PersistedData> TestConfigurator::CreateMetadata() const {
+  return base::MakeUnique<PersistedData>(GetPrefService());
+}
+
 }  // namespace update_client