Revert "chromeos: Move files in //ash/common to //ash, part 3"

ash/ash_layout_constants.h

Index: ash/ash_layout_constants.h
diff --git a/ash/ash_layout_constants.h b/ash/ash_layout_constants.h
deleted file mode 100644
index 5e0c088ba2f14a9e1fa30155d87a7d897146c420..0000000000000000000000000000000000000000
--- a/ash/ash_layout_constants.h
+++ /dev/null
@@ -1,24 +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_ASH_LAYOUT_CONSTANTS_H_
-#define ASH_ASH_LAYOUT_CONSTANTS_H_
-
-#include "ash/ash_export.h"
-#include "ui/gfx/geometry/size.h"
-
-enum class AshLayoutSize {
-  // Size of a caption button in a maximized browser window.
-  BROWSER_MAXIMIZED_CAPTION_BUTTON,
-
-  // Size of a caption button in a restored browser window.
-  BROWSER_RESTORED_CAPTION_BUTTON,
-
-  // Size of a caption button in a non-browser window.
-  NON_BROWSER_CAPTION_BUTTON,
-};
-
-ASH_EXPORT gfx::Size GetAshLayoutSize(AshLayoutSize size);
-
-#endif  // ASH_ASH_LAYOUT_CONSTANTS_H_