--- a/gfx/layers/TextureDIB.cpp
+++ b/gfx/layers/TextureDIB.cpp
@@ -1,9 +1,9 @@
-/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+Test/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 
 #include "TextureDIB.h"
 #include "gfx2DGlue.h"
 #include "mozilla/gfx/DataSurfaceHelpers.h" // For BufferSizeFromDimensions
 #include "mozilla/layers/ISurfaceAllocator.h"