Add views::Button style enum for LabelButton [native] styling, etc.

ui/views/controls/button/custom_button.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_VIEWS_CONTROLS_BUTTON_CUSTOM_BUTTON_H_
 #define UI_VIEWS_CONTROLS_BUTTON_CUSTOM_BUTTON_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "ui/base/animation/animation_delegate.h"
 #include "ui/base/events/event_constants.h"
@@ skipping 13 matching lines @@
 // part of the focus chain.  Call set_focusable(true) to make it part of the
 // focus chain.
 class VIEWS_EXPORT CustomButton : public Button,
                                   public ui::AnimationDelegate {
  public:
   // The menu button's class name.
   static const char kViewClassName[];
 
   virtual ~CustomButton();
 
-  // Possible states
-  enum ButtonState {
-    STATE_NORMAL = 0,
-    STATE_HOVERED,
-    STATE_PRESSED,
-    STATE_DISABLED,
-    STATE_COUNT
-  };
-
   // Get/sets the current display state of the button.
   ButtonState state() const { return state_; }
   void SetState(ButtonState state);
 
   // Starts throbbing. See HoverAnimation for a description of cycles_til_stop.
   void StartThrobbing(int cycles_til_stop);
 
   // Stops throbbing immediately.
   void StopThrobbing();
 
@@ skipping 98 matching lines @@
 
   scoped_ptr<CustomButtonStateChangedDelegate> state_changed_delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(CustomButton);
 };
 
 // Delegate for actions taken on state changes by CustomButton.
 class VIEWS_EXPORT CustomButtonStateChangedDelegate {
 public:
   virtual ~CustomButtonStateChangedDelegate() {}
-  virtual void StateChanged(CustomButton::ButtonState state) = 0;
+  virtual void StateChanged(Button::ButtonState state) = 0;
 
 protected:
   CustomButtonStateChangedDelegate() {}
 
 private:
   DISALLOW_COPY_AND_ASSIGN(CustomButtonStateChangedDelegate);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_CONTROLS_BUTTON_CUSTOM_BUTTON_H_