[MD settings] adding homepage url input

chrome/browser/resources/settings/appearance_page/appearance_page.html

 <link rel="import" href="chrome://resources/polymer/v1_0/polymer/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.html">
+<link rel="import" href="chrome://resources/polymer/v1_0/paper-input/paper-input.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-radio-button/paper-radio-button.html">
 <link rel="import" href="chrome://md-settings/checkbox/checkbox.html">
 <link rel="import" href="chrome://md-settings/radio_group/radio_group.html">
 
 <dom-module id="cr-settings-appearance-page">
   <link rel="import" type="css"
       href="chrome://md-settings/settings_page/settings_page.css">
   <link rel="import" type="css"
       href="chrome://md-settings/appearance_page/appearance_page.css">
   <link rel="import" type="css" href="chrome://resources/css/widgets.css">
@@ skipping 12 matching lines @@
     <cr-settings-checkbox pref="{{prefs.browser.show_home_button}}"
         i18n-values="label:showHomeButton">
     </cr-settings-checkbox>
     <template is="dom-if" if="{{prefs.browser.show_home_button.value}}">
       <cr-settings-radio-group pref="{{prefs.homepage_is_newtabpage}}">
         <paper-radio-button name="true"
             >[[i18n_.homePageNtp]]</paper-radio-button>
         <paper-radio-button name="false"
             >[[i18n_.openThisPage]]</paper-radio-button>
       </cr-settings-radio-group>
+      <div class="radio-extended">
+        <paper-input no-label-float value="{{prefs.homepage.value}}"
+            label="[[i18n_.onStartupEnterUrl]]"></paper-input>
+      </div>
     </template>
     <cr-settings-checkbox pref="{{prefs.bookmark_bar.show_on_all_tabs}}"
         i18n-values="label:showBookmarksBar">
     </cr-settings-checkbox>
   </template>
   <script src="appearance_page.js"></script>
 </dom-module>