Site Settings Desktop: Polish the Site Data section.

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

 <link rel="import" href="chrome://resources/html/polymer.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-button/paper-button.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">
 <link rel="import" href="/site_settings/constants.html">
 <link rel="import" href="/site_settings/site_details_permission.html">
 <link rel="import" href="/site_settings/site_settings_behavior.html">
 <link rel="import" href="/site_settings/website_usage_private_api.html">
 
 <dom-module id="site-details">
   <template>
     <style include="settings-shared">
       .favicon-image {
         margin: 2px;
       }
 
       #storage {
         -webkit-padding-end: 0;
       }
     </style>
+    <!-- Confirm Delete dialog -->
+    <dialog is="cr-dialog" id="confirmDeleteDialog">
+      <div class="title">$i18n{siteSettingsSiteRemoveDialogTitle}</div>
+      <div class="body">
+        [[confirmationDeleteMsg_]]
+      </div>
+      <div class="button-container">
+        <paper-button class="cancel-button" on-tap="onCloseDialog_">
+          $i18n{cancel}
+        </paper-button>
+        <paper-button class="action-button" on-tap="onClearStorage_">
+          $i18n{siteSettingsSiteClearAll}
+        </paper-button>
+      </div>
+    </dialog>
+
     <div class="settings-box first">
       <div class="favicon-image"
           style$="[[computeSiteIcon(site.originForDisplay)]]">
       </div>
       <div class="middle">[[site.originForDisplay]]</div>
     </div>
     <div id="usage" hidden$="[[!storedData_]]">
       <div class="settings-box first">
         <h2>$i18n{siteSettingsUsage}</h2>
       </div>
       <div class="list-frame">
         <paper-item id="storage" hidden$="[[!storedData_]]">
           <div class="flex">[[storedData_]]</div>
           <paper-icon-button icon="cr:delete"
-              on-tap="onClearStorage_"
+              on-tap="onConfirmClearStorage_"
               alt="$i18n{siteSettingsDelete}"></paper-icon-button>
         </paper-item>
       </div>
     </div>
     <div class="settings-box first">
       <h2>$i18n{siteSettingsPermissions}</h2>
     </div>
     <div class="list-frame">
       <site-details-permission site="[[site]]" id="cookies"
           category="{{ContentSettingsTypes.COOKIES}}">
@@ skipping 39 matching lines @@
         $i18n{siteSettingsClearAndReset}
       </div>
     </div>
     <website-usage-private-api id="usageApi"
         website-data-usage="{{storedData_}}"
         website-storage-type="{{storageType_}}">
     </website-usage-private-api>
   </template>
   <script src="site_details.js"></script>
 </dom-module>