Remove non-MD code from ShelfButton

ash/common/shelf/shelf_constants.h

 // Copyright 2013 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_COMMON_SHELF_SHELF_CONSTANTS_H_
 #define ASH_COMMON_SHELF_SHELF_CONSTANTS_H_
 
 #include "ash/ash_export.h"
 #include "third_party/skia/include/core/SkColor.h"
 
 namespace ash {
 
 enum ShelfConstant {
   // Size of the shelf when visible (height when the shelf is horizontal and
   // width when the shelf is vertical).
   SHELF_SIZE,
 
-  // Size of the space between buttons on the shelf.
-  SHELF_BUTTON_SPACING,
-
-  // Size allocated for each app button on the shelf.
-  SHELF_BUTTON_SIZE,
-
   // Insets allocated for shelf when it is auto hidden.
   SHELF_INSETS_FOR_AUTO_HIDE
 };
 
 // We reserve a small area on the edge of the workspace area to ensure that
 // the resize handle at the edge of the window can be hit.
 extern const int kWorkspaceAreaVisibleInset;
 
 // When autohidden we extend the touch hit target onto the screen so that the
 // user can drag the shelf out.
 extern const int kWorkspaceAreaAutoHideInset;
 
 // Size of the shelf when auto-hidden.
 ASH_EXPORT extern const int kShelfAutoHideSize;
 
 // Inset between the inner edge of the shelf (towards centre of screen), and
 // the shelf items, notifications, status area etc.
 extern const int kShelfItemInset;
 
 // Animation duration for switching black shelf and dock background on and off.
 ASH_EXPORT extern const int kTimeToSwitchBackgroundMs;
 
 // The default base color of the shelf to which different alpha values are
 // applied based on the desired shelf opacity level.
 ASH_EXPORT extern const SkColor kShelfDefaultBaseColor;
 
+// Size allocated for each app button on the shelf.
+ASH_EXPORT extern const int kShelfButtonSize;
+
+// Size of the space between buttons on the shelf.
+ASH_EXPORT extern const int kShelfButtonSpacing;
+
 // Highlight color used for shelf button activated states.
 // TODO(bruthig|mohsen): Use of this color is temporary. Draw the active state
 // using the material design ripple animation.
 ASH_EXPORT extern const SkColor kShelfButtonActivatedHighlightColor;
 
 // Ink drop color for shelf items.
 extern const SkColor kShelfInkDropBaseColor;
 
 // Opacity of the ink drop ripple for shelf items when the ripple is visible.
 extern const float kShelfInkDropVisibleOpacity;
@@ skipping 17 matching lines @@
 extern const int kAppListButtonRadius;
 
 // The direction of the focus cycling.
 enum CycleDirection { CYCLE_FORWARD, CYCLE_BACKWARD };
 
 ASH_EXPORT int GetShelfConstant(ShelfConstant shelf_constant);
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SHELF_SHELF_CONSTANTS_H_