Refactoring: Change all -FileUtils non-Singleton and to own underlying FileUtils.

webkit/fileapi/file_system_quota_client_unittest.cc

Index: webkit/fileapi/file_system_quota_client_unittest.cc
diff --git a/webkit/fileapi/file_system_quota_client_unittest.cc b/webkit/fileapi/file_system_quota_client_unittest.cc
index d54978a6bc868bfa3794e6fba1f9ff5d70b985fa..654419dd98da89ec8fba52b5ecac03984bc0c3a7 100644
--- a/webkit/fileapi/file_system_quota_client_unittest.cc
+++ b/webkit/fileapi/file_system_quota_client_unittest.cc
@@ -217,7 +217,7 @@ class FileSystemQuotaClientTest : public testing::Test {
         if (!path.empty()) {
           // TODO(dmikurube): Use QuotaFileUtil in the actual -FileUtil stack.
           file_paths_cost +=
-              QuotaFileUtil::GetInstance()->ComputeFilePathCost(path);
+              QuotaFileUtil::CreateDefault()->ComputeFilePathCost(path);
         }
       }
     }