Add line height setting to views::Label & use it for notifications.

ui/message_center/views/bounded_label.h

 // Copyright 2013 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_BOUNDED_LABEL_H_
 #define UI_MESSAGE_CENTER_BOUNDED_LABEL_H_
 
 #include <list>
 #include <map>
 
@@ skipping 20 matching lines @@
 // to avoid exposing some of views::Label's methods that can't be made to work
 // with BoundedLabel. See the description of InnerBoundedLabel in the
 // bounded_label.cc file for details.
 class MESSAGE_CENTER_EXPORT BoundedLabel : public views::View {
  public:
   BoundedLabel(const string16& text, gfx::Font font);
   BoundedLabel(const string16& text);
   virtual ~BoundedLabel();
 
   void SetColors(SkColor textColor, SkColor backgroundColor);
+  void SetLineHeight(int height);  // Pass in 0 for default height.
   void SetLineLimit(int lines);  // Pass in -1 for no limit.
 
-  int line_limit() const { return line_limit_; }
+  int GetLineHeight() const;
+  int GetLineLimit() const;
 
   // Pass in a -1 width to use the preferred width, a -1 limit to skip limits.
   int GetLinesForWidthAndLimit(int width, int limit);
   gfx::Size GetSizeForWidthAndLines(int width, int lines);
 
   // Overridden from views::View.
   virtual int GetBaseline() const OVERRIDE;
   virtual gfx::Size GetPreferredSize() OVERRIDE;
   virtual int GetHeightForWidth(int width) OVERRIDE;
   virtual void Paint(gfx::Canvas* canvas) OVERRIDE;
@@ skipping 12 matching lines @@
 
   scoped_ptr<InnerBoundedLabel> label_;
   int line_limit_;
 
   DISALLOW_COPY_AND_ASSIGN(BoundedLabel);
 };
 
 }  // namespace message_center
 
 #endif  // UI_MESSAGE_CENTER_BOUNDED_LABEL_H_