arc: Support more types of 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 60 matching lines @@
 
 // Text sizes.
 const int kTitleFontSize = 14;             // For title only.
 const int kEmptyCenterFontSize = 13;       // For empty message only.
 const int kTitleLineHeight = 20;           // In DIPs.
 const int kMessageFontSize = 12;           // For everything but title.
 const int kMessageLineHeight = 18;         // In DIPs.
 
 // Colors.
 extern const SkColor kNotificationBackgroundColor; // Background of the card.
-extern const SkColor kImageBackgroundColor;        // Background of the image.
+// Background of the image.
+MESSAGE_CENTER_EXPORT extern const SkColor kImageBackgroundColor;
 extern const SkColor kIconBackgroundColor;         // Used behind icons smaller
                                                    // than the icon view.
 extern const SkColor kRegularTextColor;            // Title, message, ...
 extern const SkColor kDimTextColor;
 extern const SkColor kFocusBorderColor;  // The focus border.
 MESSAGE_CENTER_EXPORT extern const SkColor
     kSmallImageMaskForegroundColor;  // Foreground of small icon image.
 MESSAGE_CENTER_EXPORT extern const SkColor
     kSmallImageMaskBackgroundColor;  // Background of small icon image.
 
 // Limits.
 
 // Given the size of an image, returns the size of the properly scaled-up image
 // which fits into |container_size|.
 MESSAGE_CENTER_EXPORT gfx::Size GetImageSizeForContainerSize(
     const gfx::Size& container_size,
     const gfx::Size& image_size);
 
 extern const int kNotificationMaximumImageHeight;  // For image notifications.
-extern const size_t kNotificationMaximumItems;     // For list notifications.
+MESSAGE_CENTER_EXPORT extern const size_t
+    kNotificationMaximumItems;     // For list notifications.
 
 // Timing.
 extern const int kAutocloseDefaultDelaySeconds;
 extern const int kAutocloseHighPriorityDelaySeconds;
 extern const int kAutocloseWebPageDelaySeconds;
 
 // Buttons.
 const int kButtonHeight = 38;              // In DIPs.
 const int kButtonHorizontalPadding = 16;   // In DIPs.
 const int kButtonIconTopPadding = 11;      // In DIPs.
@@ skipping 29 matching lines @@
 
 extern const SkColor kShadowColor;           // Shadow in the tray.
 
 extern const SkColor kMessageCenterBackgroundColor;
 extern const SkColor kFooterDelimiterColor;  // Separator color for the tray.
 extern const SkColor kFooterTextColor;       // Text color for tray labels.
 
 }  // namespace message_center
 
 #endif  // UI_MESSAGE_CENTER_MESSAGE_CENTER_STYLE_H_