Promote bubble_window_style to more general dialog_style.

chrome/browser/ui/dialog_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_
+#ifndef CHROME_BROWSER_UI_DIALOG_STYLE_H_
+#define CHROME_BROWSER_UI_DIALOG_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 {
+enum DialogStyle {
   // Default style.
   STYLE_GENERIC = 0,
 
+#if defined(OS_CHROMEOS)
   // Show close button at the top right (left for RTL).
   // Deprecated, see BubbleWindow::Create().
+  // TODO(bshe): We probably need to use this style for certificate viewer
+  // HTML dialog.
   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
+#endif
+
 };
 
-extern const SkColor kBubbleWindowBackgroundColor;
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_FRAME_BUBBLE_WINDOW_STYLE_H_
+#endif  // CHROME_BROWSER_UI_DIALOG_STYLE_H_