refactor: Inject IRootFolder

Signed-off-by: Christopher Ng <chrng8@gmail.com>

[skip ci]

Author: Pytal

apps/files/lib/Service/OwnershipTransferService.php

@@ -109,8 +109,8 @@ public function transfer(
 		// a lazy root folder which does not create the destination users folder
 		\OC_Util::setupFS($sourceUser->getUID());
 		\OC_Util::setupFS($destinationUser->getUID());
-		\OC::$server->getUserFolder($sourceUser->getUID());
-		\OC::$server->getUserFolder($destinationUser->getUID());
+		$this->rootFolder->getUserFolder($sourceUser->getUID());
+		$this->rootFolder->getUserFolder($destinationUser->getUID());
 		Filesystem::initMountPoints($sourceUid);
 		Filesystem::initMountPoints($destinationUid);
 
@@ -477,7 +477,7 @@ private function restoreShares(
 						} catch (\OCP\Files\NotFoundException) {
 							// ID has changed due to transfer between different storages
 							// Try to get the new ID from the target path and suffix of the share
-							$node = $rootFolder->get(Filesystem::normalizePath($targetLocation . '/' . $suffix));
+							$node = $this->rootFolder->get(Filesystem::normalizePath($targetLocation . '/' . $suffix));
 							$newNodeId = $node->getId();
 							$output->writeln('Had to change node id to ' . $newNodeId, OutputInterface::VERBOSITY_VERY_VERBOSE);
 						}