Convert cr-settings-drawer to Polymer 0.8

chrome/browser/resources/settings/settings_drawer/settings_drawer.css

-<link rel="import" href="chrome://resources/polymer/polymer/polymer.html">
-<link rel="import" href="chrome://resources/polymer/core-style/core-style.html">
+/* Copyright 2015 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. */
 
-<core-style id="settingsDrawerStyle">
 :host {
   background-color: rgb(38, 50, 56);
   color: white;
-  display: block;
+  display: flex;
+  flex-direction: column;
   overflow: auto;
 }
 
 #user-card {
   -webkit-padding-start: 40px;
   background-color: rgb(28, 37, 42);
   color: white;
   height: 95px;
 }
 
 #user-card img {
   -webkit-margin-end: 15px;
   height: 50px;
   width: 50px;
 }
 
 #user-card .name {
   font-size: 18px;
 }
 
 #user-card .email {
   font-size: 14px;
 }
-</core-style>