views: Add a new ctor to MessageBoxView that takes only a InitParams.

chrome/browser/ui/views/tab_modal_confirm_dialog_views.cc

Index: chrome/browser/ui/views/tab_modal_confirm_dialog_views.cc
diff --git a/chrome/browser/ui/views/tab_modal_confirm_dialog_views.cc b/chrome/browser/ui/views/tab_modal_confirm_dialog_views.cc
index 82a7c0b9130e1cdb7d07a9daa909765fc92cd89d..fd8b26542c6886bab9a4c912e436f4d5adf93747 100644
--- a/chrome/browser/ui/views/tab_modal_confirm_dialog_views.cc
+++ b/chrome/browser/ui/views/tab_modal_confirm_dialog_views.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// Copyright (c) 2012 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.
 
@@ -32,10 +32,7 @@ TabModalConfirmDialogViews::TabModalConfirmDialogViews(
     TabModalConfirmDialogDelegate* delegate,
     TabContentsWrapper* wrapper)
     : delegate_(delegate),
-      message_box_view_(new views::MessageBoxView(
-          views::MessageBoxView::NO_OPTIONS,
-          delegate->GetMessage(),
-          string16())) {
+      message_box_view_(new views::MessageBoxView(delegate->GetMessage())) {
   delegate_->set_window(new ConstrainedWindowViews(wrapper, this));
 }