Switching ExtensionSpecialStoragePolicy::IsStorageDurable to use DurableStoragePermissionContext.

components/content_settings/core/browser/cookie_settings.cc

Index: components/content_settings/core/browser/cookie_settings.cc
diff --git a/components/content_settings/core/browser/cookie_settings.cc b/components/content_settings/core/browser/cookie_settings.cc
index 2d5730ef3ba990b2082c6d662735a72d23ca2249..53ad8255b6f909772f0c6f199869cd18e1d171f5 100644
--- a/components/content_settings/core/browser/cookie_settings.cc
+++ b/components/content_settings/core/browser/cookie_settings.cc
@@ -106,16 +106,6 @@ void CookieSettings::ResetCookieSetting(const GURL& primary_url) {
       CONTENT_SETTING_DEFAULT);
 }
 
-bool CookieSettings::IsStorageDurable(const GURL& origin) const {
-  // TODO(dgrogan): Don't use host_content_settings_map_ directly.
-  // https://crbug.com/539538
-  ContentSetting setting = host_content_settings_map_->GetContentSetting(
-      origin /*primary*/, origin /*secondary*/,
-      CONTENT_SETTINGS_TYPE_DURABLE_STORAGE,
-      std::string() /*resource_identifier*/);
-  return setting == CONTENT_SETTING_ALLOW;
-}
-
 void CookieSettings::ShutdownOnUIThread() {
   DCHECK(thread_checker_.CalledOnValidThread());
   pref_change_registrar_.RemoveAll();