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_