Revert of ash: Refactor touch hud drawing to ash/touch_hud.

ash/touch_hud/ash_touch_hud_export.h

Index: ash/touch_hud/ash_touch_hud_export.h
diff --git a/ash/touch_hud/ash_touch_hud_export.h b/ash/touch_hud/ash_touch_hud_export.h
deleted file mode 100644
index 835d4689d0ea4443bc99172ff8ce0fa9f0a12197..0000000000000000000000000000000000000000
--- a/ash/touch_hud/ash_touch_hud_export.h
+++ /dev/null
@@ -1,29 +0,0 @@
-// Copyright 2016 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 ASH_TOUCH_HUD_ASH_TOUCH_HUD_EXPORT_H_
-#define ASH_TOUCH_HUD_ASH_TOUCH_HUD_EXPORT_H_
-
-#if defined(COMPONENT_BUILD)
-#if defined(WIN32)
-
-#if defined(ASH_TOUCH_HUD_IMPLEMENTATION)
-#define ASH_TOUCH_HUD_EXPORT __declspec(dllexport)
-#else
-#define ASH_TOUCH_HUD_EXPORT __declspec(dllimport)
-#endif  // defined(ASH_TOUCH_HUD_IMPLEMENTATION)
-
-#else  // defined(WIN32)
-#if defined(ASH_TOUCH_HUD_IMPLEMENTATION)
-#define ASH_TOUCH_HUD_EXPORT __attribute__((visibility("default")))
-#else
-#define ASH_TOUCH_HUD_EXPORT
-#endif
-#endif
-
-#else  // defined(COMPONENT_BUILD)
-#define ASH_TOUCH_HUD_EXPORT
-#endif
-
-#endif  // ASH_TOUCH_HUD_ASH_TOUCH_HUD_EXPORT_H_