Move TestingPrefService to use unique_ptr<Value>

chrome/browser/chromeos/printing/printers_manager_unittest.cc

Index: chrome/browser/chromeos/printing/printers_manager_unittest.cc
diff --git a/chrome/browser/chromeos/printing/printers_manager_unittest.cc b/chrome/browser/chromeos/printing/printers_manager_unittest.cc
index 616cb8522cff2843ec019db62d2b5f53563bf98c..cf874e327f3943396d72eaf559de6c34f961cc5b 100644
--- a/chrome/browser/chromeos/printing/printers_manager_unittest.cc
+++ b/chrome/browser/chromeos/printing/printers_manager_unittest.cc
@@ -196,7 +196,7 @@ TEST_F(PrintersManagerTest, RecommendedPrinters) {
   sync_preferences::TestingPrefServiceSyncable* prefs =
       profile_->GetTestingPrefService();
   // TestingPrefSyncableService assumes ownership of |value|.
-  prefs->SetManagedPref(prefs::kRecommendedNativePrinters, value.release());
+  prefs->SetManagedPref(prefs::kRecommendedNativePrinters, std::move(value));
 
   auto printers = manager_->GetRecommendedPrinters();
   ASSERT_EQ(2U, printers.size());
@@ -213,7 +213,7 @@ TEST_F(PrintersManagerTest, GetRecommendedPrinter) {
   sync_preferences::TestingPrefServiceSyncable* prefs =
       profile_->GetTestingPrefService();
   // TestingPrefSyncableService assumes ownership of |value|.
-  prefs->SetManagedPref(prefs::kRecommendedNativePrinters, value.release());
+  prefs->SetManagedPref(prefs::kRecommendedNativePrinters, std::move(value));
 
   auto printers = manager_->GetRecommendedPrinters();