Update notification style: allow 2-line titles if the message is blank.

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 "base/basictypes.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/size.h"
@@ skipping 95 matching lines @@
 
 // Progress bar.
 const int kProgressBarThickness = 5;
 const int kProgressBarTopPadding = 16;
 const int kProgressBarCornerRadius = 3;
 const SkColor kProgressBarBackgroundColor = SkColorSetRGB(216, 216, 216);
 const SkColor kProgressBarSliceColor = SkColorSetRGB(120, 120, 120);
 
 // Line limits.
 const int kTitleLineLimit = 1;
+const int kTitleNoMessageLineLimit = 2;
 const int kMessageCollapsedLineLimit = 2;
 const int kMessageExpandedLineLimit = 5;
 const int kContextMessageLineLimit = 1;
 
 // Around notifications ////////////////////////////////////////////////////////
 
 // DIP dimensions (H = horizontal, V = vertical).
 const int kMarginBetweenItems = 10;  // H & V space around & between
                                      // notifications.
 
 // Colors.
 extern const SkColor kBackgroundLightColor;  // Behind notifications, gradient
 extern const SkColor kBackgroundDarkColor;   // from light to dark.
 
 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_