[ash-md] Updated layout of Brightness and Audio system menu rows to the material design spec.

ash/common/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_COMMON_SYSTEM_TRAY_TRAY_CONSTANTS_H_
 #define ASH_COMMON_SYSTEM_TRAY_TRAY_CONSTANTS_H_
 
 #include "ash/ash_export.h"
 
 typedef unsigned int SkColor;
@@ skipping 128 matching lines @@
   // Padding between the edge of shelf and the item in status tray area.
   TRAY_PADDING_FROM_EDGE_OF_SHELF,
 
   // The height of the rows in the system tray menu.
   TRAY_POPUP_ITEM_HEIGHT,
 
   // The width used for the main image of the row. This applies to all rows
   // in the system menu that have a main image (e.g. default and detailed).
   TRAY_POPUP_ITEM_MAIN_IMAGE_CONTAINER_WIDTH,
 
-  // The width used for the 'more' arrow images. In general this applies to all
-  // rows in the system menu that have a 'more' image however most, if not all,
-  // are default rows.
-  TRAY_POPUP_ITEM_MORE_IMAGE_CONTAINER_WIDTH,
+  // The width used for the images used in the 'more' region of default rows.
+  TRAY_POPUP_ITEM_MORE_IMAGE_SIZE,
+
+  // The horizontal inset in the 'more' region of default rows.
+  TRAY_POPUP_ITEM_MORE_REGION_HORIZONTAL_INSET,
 
   // The left inset for all tray system menu rows.
   TRAY_POPUP_ITEM_LEFT_INSET,
 
   // The right inset for all tray system menu rows.
   TRAY_POPUP_ITEM_RIGHT_INSET,
 
   // The minimum default width for the left container of the system menu rows.
   TRAY_POPUP_ITEM_MIN_START_WIDTH,
 
@@ skipping 16 matching lines @@
 int GetTrayConstant(TrayConstant constant);
 
 namespace test {
 const int kSettingsTrayItemViewId = 10000;
 const int kAccessibilityTrayItemViewId = 10001;
 }  // namespace test
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SYSTEM_TRAY_TRAY_CONSTANTS_H_