Site Settings: Implement dialog for adding site exceptions.

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

 <link rel="import" href="chrome://resources/html/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://md-settings/i18n_setup.html">
 <link rel="import" href="chrome://md-settings/settings_dialog.html">
 <link rel="import" href="chrome://md-settings/settings_shared_css.html">
-<link rel="import" href="chrome://md-settings/certificate_manager_page/certificates_browser_proxy.html">
 
-<dom-module id="settings-certificate-delete-confirmation-dialog">
+<dom-module id="add-site-dialog">
   <template>
     <style include="settings-shared"></style>
     <settings-dialog id="dialog">
-      <div class="title">[[getTitleText_(model, certificateType)]]</div>
+      <div class="title">$i18n{addSiteHeader}</div>
       <div class="body">
-        <div>[[getDescriptionText_(model, certificateType)]]</div>
+        <span class="start">$i18n{addSite}</span>
+        <paper-input type="text" id="site" autofocus
+            value="{{site_}}" on-input="validate_"></paper-input>
       </div>
       <div class="button-container">
-        <paper-button class="cancel-button" on-tap="onCancelTap_">
-          $i18n{cancel}
+        <paper-button class="cancel-button" dialog-dismiss>
+            $i18n{cancel}
         </paper-button>
-        <paper-button id="ok" class="action-button" on-tap="onOkTap_">
-          $i18n{ok}
+        <paper-button class="action-button" id="add"
+            on-tap="onAddTap_" disabled>
+          $i18n{add}
         </paper-button>
       </div>
     </settings-dialog>
   </template>
-  <script src="certificate_delete_confirmation_dialog.js"></script>
+  <script src="add_site_dialog.js"></script>
 </dom-module>