Update shelf spacing in Chrome OS according to the MD specs

ash/system/tray/tray_constants.h

 // Copyright (c) 2012 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_SYSTEM_TRAY_TRAY_CONSTANTS_H_
 #define ASH_SYSTEM_TRAY_TRAY_CONSTANTS_H_
 
 #include "ash/ash_export.h"
 
 typedef unsigned int SkColor;
 
 namespace ash {
 
 extern const int kPaddingFromRightEdgeOfScreenBottomAlignment;
 extern const int kPaddingFromBottomOfScreenBottomAlignment;
 extern const int kPaddingFromOuterEdgeOfLauncherVerticalAlignment;
 extern const int kPaddingFromInnerEdgeOfLauncherVerticalAlignment;
 extern const int kPaddingFromBottomOfScreenVerticalAlignment;
 
 extern const int kBubblePaddingHorizontalBottom;
 extern const int kBubblePaddingHorizontalSide;
 extern const int kBubblePaddingVerticalBottom;
 extern const int kBubblePaddingVerticalSide;
 
-extern const int kPaddingFromEdgeOfShelf;
+extern const int kEmptyBoarderPadding;

[bruthig, 2016/05/25 20:24:53]

sp: Boarder->Border

[yiyix, 2016/06/02 03:54:54]

Done.

+enum ShelfStatusAreaInset {
+  // Padding between the edge of the shelf and the status tray area.
+  PADDING_FROM_EDGE_OF_SHELF,
+
+  // Padding between icons in the status tray area.
+  TRAY_SPACING,
+
+  // Padding between the edge of shelf and the overview button.
+  PADDING_FROM_EDGE_TO_OVERVIEW_BUTTON,

[bruthig, 2016/05/25 20:24:53]

Remove this value and use PADDING_FROM_EDGE_OF_SHELF.

[yiyix, 2016/06/02 03:54:54]

Done.

+};
+
 extern const int kTrayBubbleAnchorTopInsetBottomAnchor;
 
 extern const int kTrayImageItemHorizontalPaddingBottomAlignment;
 extern const int kTrayImageItemHorizontalPaddingVerticalAlignment;
 extern const int kTrayImageItemVerticalPaddingVerticalAlignment;
 
 ASH_EXPORT extern const int kTrayItemSize;
 
 extern const int kTrayLabelItemHorizontalPaddingBottomAlignment;
 extern const int kTrayLabelItemVerticalPaddingVerticalAlignment;
@@ skipping 33 matching lines @@
 
 extern const int kTrayPopupMinWidth;
 extern const int kTrayPopupMaxWidth;
 extern const int kNotificationIconWidth;
 extern const int kNotificationButtonWidth;
 extern const int kTrayNotificationContentsWidth;
 
 extern const int kTrayAvatarCornerRadius;
 extern const int kTrayAvatarSize;
 
-extern const int kTraySpacing;
+extern const int kMessageCenterBubblePadding;
 extern const int kShelfItemHeight;
 
+int GetShelfStatusAreaInset(ShelfStatusAreaInset constant);
+
 namespace test {
 const int kSettingsTrayItemViewId = 10000;
 const int kAccessibilityTrayItemViewId = 10001;
 }  // namespace test
 
 }  // namespace ash
 
 #endif  // ASH_SYSTEM_TRAY_TRAY_CONSTANTS_H_