Remove deprecated CONTENT_SETTINGS_TYPE_METRO_SWITCH_TO_DESKTOP content setting

chrome/browser/plugins/plugin_observer.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/plugins/plugin_observer.h"
 
 #include "base/auto_reset.h"
 #include "base/bind.h"
 #include "base/debug/crash_logging.h"
 #include "base/metrics/histogram.h"
@@ skipping 400 matching lines @@
                                  plugin_name),
       true);
 }
 
 void PluginObserver::OnNPAPINotSupported(const std::string& identifier) {
 #if defined(OS_WIN) && defined(ENABLE_PLUGIN_INSTALLATION)
 #if !defined(USE_AURA)
   DCHECK(base::win::IsMetroProcess());
 #endif
 
-  Profile* profile =
-      Profile::FromBrowserContext(web_contents()->GetBrowserContext());
-  if (profile->IsOffTheRecord())
-    return;
-  HostContentSettingsMap* content_settings =
-      profile->GetHostContentSettingsMap();
-  if (content_settings->GetContentSetting(
-      web_contents()->GetURL(),
-      web_contents()->GetURL(),
-      CONTENT_SETTINGS_TYPE_METRO_SWITCH_TO_DESKTOP,
-      std::string()) == CONTENT_SETTING_BLOCK)
-    return;
-
   scoped_ptr<PluginMetadata> plugin;
   bool ret = PluginFinder::GetInstance()->FindPluginWithIdentifier(
       identifier, NULL, &plugin);
   DCHECK(ret);
 
   PluginMetroModeInfoBarDelegate::Create(
       InfoBarService::FromWebContents(web_contents()),
       PluginMetroModeInfoBarDelegate::DESKTOP_MODE_REQUIRED, plugin->name());
 #endif
 }