Add notification settings button to ARC notifications.

ui/message_center/message_center_style.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 UI_MESSAGE_CENTER_MESSAGE_CENTER_STYLE_H_
 #define UI_MESSAGE_CENTER_MESSAGE_CENTER_STYLE_H_
 
 #include <stddef.h>
 
 #include "build/build_config.h"
@@ skipping 125 matching lines @@
 #endif
 
 // Line limits.
 const int kMaxTitleLines = 2;
 const int kMessageCollapsedLineLimit = 2;
 const int kMessageExpandedLineLimit = 5;
 const int kContextMessageLineLimit = 1;
 
 // Icons.
 MESSAGE_CENTER_EXPORT gfx::ImageSkia GetCloseIcon();
+MESSAGE_CENTER_EXPORT gfx::ImageSkia GetSettingsIcon();
 
 // Around notifications ////////////////////////////////////////////////////////
 
 // DIP dimensions (H = horizontal, V = vertical).
 const int kMarginBetweenItems = 10;  // H & V space around & between
                                      // notifications.
 
 // Colors.
 // Behind notifications, gradient
 const SkColor kBackgroundLightColor = SkColorSetRGB(0xf1, 0xf1, 0xf1);
 // from light to dark.
 const SkColor kBackgroundDarkColor = SkColorSetRGB(0xe7, 0xe7, 0xe7);
 
 // Shadow in the tray.
 const SkColor kShadowColor = SkColorSetARGB(0.3 * 255, 0, 0, 0);
 
 const SkColor kMessageCenterBackgroundColor = SkColorSetRGB(0xee, 0xee, 0xee);
 // Separator color for the tray.
 const SkColor kFooterDelimiterColor = SkColorSetRGB(0xcc, 0xcc, 0xcc);
 // Text color for tray labels.
 const SkColor kFooterTextColor = SkColorSetRGB(0x7b, 0x7b, 0x7b);
 
 }  // namespace message_center
 
 #endif  // UI_MESSAGE_CENTER_MESSAGE_CENTER_STYLE_H_