Promote bubble_window_style to more general dialog_style.

chrome/browser/chromeos/login/login_html_dialog.cc

Index: chrome/browser/chromeos/login/login_html_dialog.cc
diff --git a/chrome/browser/chromeos/login/login_html_dialog.cc b/chrome/browser/chromeos/login/login_html_dialog.cc
index 3ab848df3f53397db4ee9263d31621158a465a0b..6b1409c9e5a6aae481a08a90c6ac689ffeeb37b0 100644
--- a/chrome/browser/chromeos/login/login_html_dialog.cc
+++ b/chrome/browser/chromeos/login/login_html_dialog.cc
@@ -61,7 +61,7 @@ void LoginHtmlDialog::Show() {
 #else
   if (style_ & STYLE_BUBBLE) {
     views::Widget* bubble_window = BubbleWindow::Create(parent_window_,
-        static_cast<BubbleWindowStyle>(STYLE_XBAR | STYLE_THROBBER),
+        static_cast<DialogStyle>(STYLE_XBAR | STYLE_THROBBER),
         html_view);
     bubble_frame_view_ = static_cast<BubbleFrameView*>(
         bubble_window->non_client_view()->frame_view());