Convert //extensions/browser from scoped_ptr to std::unique_ptr

extensions/browser/value_store/value_store_factory_impl.cc

Index: extensions/browser/value_store/value_store_factory_impl.cc
diff --git a/extensions/browser/value_store/value_store_factory_impl.cc b/extensions/browser/value_store/value_store_factory_impl.cc
index 27324fd2bd54324fa8784f69301ae5b028e7f770..3689421bdf983ad8062cd3e9af914c0de0f3d03f 100644
--- a/extensions/browser/value_store/value_store_factory_impl.cc
+++ b/extensions/browser/value_store/value_store_factory_impl.cc
@@ -15,15 +15,15 @@ ValueStoreFactoryImpl::ValueStoreFactoryImpl(const base::FilePath& profile_path)
 
 ValueStoreFactoryImpl::~ValueStoreFactoryImpl() = default;
 
-scoped_ptr<ValueStore> ValueStoreFactoryImpl::CreateRulesStore() {
+std::unique_ptr<ValueStore> ValueStoreFactoryImpl::CreateRulesStore() {
   return legacy_factory_->CreateRulesStore();
 }
 
-scoped_ptr<ValueStore> ValueStoreFactoryImpl::CreateStateStore() {
+std::unique_ptr<ValueStore> ValueStoreFactoryImpl::CreateStateStore() {
   return legacy_factory_->CreateStateStore();
 }
 
-scoped_ptr<ValueStore> ValueStoreFactoryImpl::CreateSettingsStore(
+std::unique_ptr<ValueStore> ValueStoreFactoryImpl::CreateSettingsStore(
     SettingsNamespace settings_namespace,
     ModelType model_type,
     const ExtensionId& extension_id) {