MD Settings: Remove usage of deprecated iron-flex-layout.html.

chrome/browser/resources/settings/site_settings/site_details.html

Index: chrome/browser/resources/settings/site_settings/site_details.html
diff --git a/chrome/browser/resources/settings/site_settings/site_details.html b/chrome/browser/resources/settings/site_settings/site_details.html
index d65bdd63f1bf94ba10193f51ba2f96282dda156d..1f0f53e141b87728631971820216ab09aa1f2cd9 100644
--- a/chrome/browser/resources/settings/site_settings/site_details.html
+++ b/chrome/browser/resources/settings/site_settings/site_details.html
@@ -3,7 +3,6 @@
 <link rel="import" href="chrome://resources/html/action_link_css.html">
 <link rel="import" href="chrome://resources/cr_elements/cr_dialog/cr_dialog.html">
 <link rel="import" href="chrome://resources/cr_elements/icons.html">
-<link rel="import" href="chrome://resources/polymer/v1_0/iron-flex-layout/iron-flex-layout.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button.html">
 <link rel="import" href="../route.html">
 <link rel="import" href="../settings_shared_css.html">
@@ -50,7 +49,7 @@
         </div>
         <div class="list-frame">
           <div class="list-item" id="storage">
-            <div class="flex">[[storedData_]]</div>
+            <div class="start">[[storedData_]]</div>
             <paper-icon-button icon="cr:delete"
                 on-tap="onConfirmClearStorage_"
                 alt="$i18n{siteSettingsDelete}"></paper-icon-button>