Don't build a bunch of stuff on Aura, rather than ifdefing out code in it.

chrome/browser/plugin_installer_infobar_delegate.cc

 // 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.
 
 #include "chrome/browser/plugin_installer_infobar_delegate.h"
 
 #include "chrome/browser/google/google_util.h"
 #include "chrome/browser/infobars/infobar_tab_helper.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/tab_contents/tab_contents.h"
@@ skipping 33 matching lines @@
 }
 
 string16 PluginInstallerInfoBarDelegate::GetButtonLabel(
     InfoBarButton button) const {
   DCHECK_EQ(BUTTON_OK, button);
   return l10n_util::GetStringUTF16(IDS_PLUGININSTALLER_INSTALLPLUGIN_BUTTON);
 }
 
 bool PluginInstallerInfoBarDelegate::Accept() {
   // TODO(PORT) for other platforms.
-#if defined(OS_WIN) && !defined(USE_AURA)
+#if defined(OS_WIN)
   ::PostMessage(window_,
                 webkit::npapi::default_plugin::kInstallMissingPluginMessage,
                 0,
                 0);
-#elif defined(USE_AURA)
-  // TODO(beng):
-  NOTIMPLEMENTED();
 #endif
   return true;
 }
 
 string16 PluginInstallerInfoBarDelegate::GetLinkText() const {
   return l10n_util::GetStringUTF16(IDS_PLUGININSTALLER_PROBLEMSINSTALLING);
 }
 
 bool PluginInstallerInfoBarDelegate::LinkClicked(
     WindowOpenDisposition disposition) {
   owner()->tab_contents()->OpenURL(google_util::AppendGoogleLocaleParam(GURL(
       "https://www.google.com/support/chrome/bin/answer.py?answer=142064")),
       GURL(),
       (disposition == CURRENT_TAB) ? NEW_FOREGROUND_TAB : disposition,
       content::PAGE_TRANSITION_LINK);
   return false;
 }