Rename "test" ozone platform to "headless"

ui/ozone/platform/test/test_surface_factory.h

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef UI_OZONE_PLATFORM_TEST_TEST_SURFACE_FACTORY_H_
-#define UI_OZONE_PLATFORM_TEST_TEST_SURFACE_FACTORY_H_
-
-#include "ui/ozone/public/surface_factory_ozone.h"
-
-namespace ui {
-
-class TestWindowManager;
-
-class TestSurfaceFactory : public SurfaceFactoryOzone {
- public:
-  TestSurfaceFactory();
-  explicit TestSurfaceFactory(TestWindowManager* window_manager);
-  ~TestSurfaceFactory() override;
-
-  // SurfaceFactoryOzone:
-  scoped_ptr<SurfaceOzoneCanvas> CreateCanvasForWidget(
-      gfx::AcceleratedWidget w) override;
-  bool LoadEGLGLES2Bindings(
-      AddGLLibraryCallback add_gl_library,
-      SetGLGetProcAddressProcCallback set_gl_get_proc_address) override;
-
- private:
-  TestWindowManager* window_manager_;
-
-  DISALLOW_COPY_AND_ASSIGN(TestSurfaceFactory);
-};
-
-}  // namespace ui
-
-#endif  // UI_OZONE_PLATFORM_TEST_TEST_SURFACE_FACTORY_H_