Promote bubble_window_style to more general dialog_style.

chrome/browser/chromeos/frame/bubble_window_style.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 CHROME_BROWSER_CHROMEOS_FRAME_BUBBLE_WINDOW_STYLE_H_
 #define CHROME_BROWSER_CHROMEOS_FRAME_BUBBLE_WINDOW_STYLE_H_
 #pragma once
 
 #include "third_party/skia/include/core/SkColor.h"
 
 namespace chromeos {
 
-// A class to share common definitions between GTK and Views implementations.
-enum BubbleWindowStyle {
-  // Default style.
-  STYLE_GENERIC = 0,
-
-  // Show close button at the top right (left for RTL).
-  // Deprecated, see BubbleWindow::Create().
-  STYLE_XBAR = 1 << 0,
-
-  // Show throbber for slow rendering.
-  // Deprecated, see BubbleWindow::Create().
-  STYLE_THROBBER = 1 << 1,
-
-  // Content flush to edge, no padding.
-  STYLE_FLUSH = 1 << 2
-};
-
 extern const SkColor kBubbleWindowBackgroundColor;
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_FRAME_BUBBLE_WINDOW_STYLE_H_