Refactored GlassBrowserFrameView and BrowserDesktopTreeHostWin.

chrome/browser/ui/views/frame/browser_frame_common_win.cc

-// Copyright (c) 2013 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.
-
-#include "chrome/browser/ui/views/frame/browser_frame_common_win.h"
-
-#include "chrome/browser/ui/views/frame/browser_view.h"
-#include "ui/base/theme_provider.h"
-
-namespace chrome {
-
-bool ShouldUseNativeFrame(const BrowserView* browser_view,
-                          const ui::ThemeProvider* theme_provider) {
-  // We don't theme popup or app windows, so regardless of whether or not a
-  // theme is active for normal browser windows, we don't want to use the custom
-  // frame for popups/apps.
-  if (!browser_view->IsBrowserTypeNormal()) {
-    return true;
-  }
-  // Otherwise, we use the native frame when we're told we should by the theme
-  // provider (e.g. no custom theme is active).
-  return theme_provider->ShouldUseNativeFrame();
-}
-
-}  // namespace browser