chromeos: Destruct DriveResourceMetadata on the blocking pool

chrome/browser/chromeos/drive/drive_test_util.cc

Index: chrome/browser/chromeos/drive/drive_test_util.cc
diff --git a/chrome/browser/chromeos/drive/drive_test_util.cc b/chrome/browser/chromeos/drive/drive_test_util.cc
index 254427568456ab2cb69e93f650bcb2fa677b4d59..8041045b3915ba70240608252e90efc9c6337cd1 100644
--- a/chrome/browser/chromeos/drive/drive_test_util.cc
+++ b/chrome/browser/chromeos/drive/drive_test_util.cc
@@ -229,12 +229,5 @@ bool LoadChangeFeed(const std::string& relative_path,
   return true;
 }
 
-void DeleteDriveCache(DriveCache* drive_cache) {
-  DCHECK(drive_cache);
-  drive_cache->Destroy();
-  // The cache destruction requires to post a task to the blocking pool.
-  google_apis::test_util::RunBlockingPoolTask();
-}
-
 }  // namespace test_util
 }  // namespace drive