Clean up some ifdefs around Win Aura.

chrome/browser/ui/views/simple_message_box_views.cc

 // 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.
 
 #include "chrome/browser/ui/simple_message_box.h"
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 179 matching lines @@
 SimpleMessageBoxViews::~SimpleMessageBoxViews() {
 }
 
 MessageBoxResult ShowMessageBoxImpl(gfx::NativeWindow parent,
                                     const base::string16& title,
                                     const base::string16& message,
                                     MessageBoxType type,
                                     const base::string16& yes_text,
                                     const base::string16& no_text) {
 
-#if defined(USE_AURA) && defined(OS_WIN)
+#if defined(OS_WIN)
   // If we're very early, we can't show a GPU-based dialog, so fallback to
   // plain Windows MessageBox.
   if (!ui::ContextFactory::GetInstance())
     return NativeShowMessageBox(NULL, title, message, type);
 #endif
 
   scoped_refptr<SimpleMessageBoxViews> dialog(
       new SimpleMessageBoxViews(title, message, type, yes_text, no_text));
   CreateBrowserModalDialogViews(dialog.get(), parent)->Show();
 
@@ skipping 35 matching lines @@
                                               const base::string16& title,
                                               const base::string16& message,
                                               const base::string16& yes_text,
                                               const base::string16& no_text) {
   return ShowMessageBoxImpl(
       parent, title, message, MESSAGE_BOX_TYPE_QUESTION, yes_text, no_text);
 }
 #endif
 
 }  // namespace chrome