Add support for blue buttons.

ui/views/controls/button/button.h

 // Copyright (c) 2011 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_VIEWS_CONTROLS_BUTTON_BUTTON_H_
 #define UI_VIEWS_CONTROLS_BUTTON_BUTTON_H_
 
 #include "ui/views/view.h"
 
 namespace views {
@@ skipping 20 matching lines @@
   // Button states for various button sub-types.
   enum ButtonState {
     STATE_NORMAL = 0,
     STATE_HOVERED,
     STATE_PRESSED,
     STATE_DISABLED,
     STATE_COUNT,
   };
 
   // Button styles with associated images and border painters.
-  // TODO(msw): Add "Blue Button", Menu, ComboBox, etc.
+  // TODO(msw): Add Menu, ComboBox, etc.
   enum ButtonStyle {
     STYLE_BUTTON = 0,
     STYLE_TEXTBUTTON,
     STYLE_NATIVE_TEXTBUTTON,
     STYLE_COUNT,
   };
 
   void SetTooltipText(const string16& tooltip_text);
 
   int tag() const { return tag_; }
@@ skipping 28 matching lines @@
   // The id tag associated with this button. Used to disambiguate buttons in
   // the ButtonListener implementation.
   int tag_;
 
   DISALLOW_COPY_AND_ASSIGN(Button);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_BUTTON_BUTTON_H_