Implement important sites dialog for desktop.

chrome/browser/resources/settings/clear_browsing_data_dialog/clear_browsing_data_browser_proxy.js

Index: chrome/browser/resources/settings/clear_browsing_data_dialog/clear_browsing_data_browser_proxy.js
diff --git a/chrome/browser/resources/settings/clear_browsing_data_dialog/clear_browsing_data_browser_proxy.js b/chrome/browser/resources/settings/clear_browsing_data_dialog/clear_browsing_data_browser_proxy.js
index b979d86434684b147f8ee44b860f7087a813358a..25a59f988ba5e1742e1fbfab0ea11d0ee1403f9c 100644
--- a/chrome/browser/resources/settings/clear_browsing_data_dialog/clear_browsing_data_browser_proxy.js
+++ b/chrome/browser/resources/settings/clear_browsing_data_dialog/clear_browsing_data_browser_proxy.js
@@ -7,15 +7,49 @@
  * to interact with the browser.
  */
 
+/**
+ * An ImportantSite represents a domain with data that the user might want
+ * to protect from being deleted. ImportantSites are determined based on
+ * various engagement factors, such as whether a site is bookmarked or receives
+ * notifications.
+ *
+ * @typedef {{
+ *   registerableDomain: string,
+ *   reasonBitfield: number,
+ *   exampleOrigin: string,
+ *   isChecked: boolean,
+ *   storageSize: number,
+ *   hasNotifications: boolean
+ * }}
+ */
+var ImportantSite;
+
+/**
+ * @typedef {{
+ *   importantSites: !Array<!ImportantSite>,
+ *   flagEnabled: boolean
+ * }}
+ */
+var ImportantSitesResponse;
+
 cr.define('settings', function() {
   /** @interface */
   function ClearBrowsingDataBrowserProxy() {}
 
   ClearBrowsingDataBrowserProxy.prototype = {
     /**
-     * @return {!Promise} A promise resolved when data clearing has completed.
+     * @param importantSites {!Array<!ImportantSite>}
+     * @return {!Promise<void>}
+     *     A promise resolved when data clearing has completed.
      */
-    clearBrowsingData: function() {},
+    clearBrowsingData: function(importantSites) {},
+
+    /**
+    * Fetches a list of important sites.
+    * @return {!Promise<!ImportantSitesResponse>}
+    *     A promise resolved when imporant sites are fetched.
+    */
+    fetchImportantSites: function() {},
 
     /**
      * Kick off counter updates and return initial state.
@@ -33,8 +67,13 @@ cr.define('settings', function() {
 
   ClearBrowsingDataBrowserProxyImpl.prototype = {
     /** @override */
-    clearBrowsingData: function() {
-      return cr.sendWithPromise('clearBrowsingData');
+    clearBrowsingData: function(importantSites) {
+      return cr.sendWithPromise('clearBrowsingData', importantSites);
+    },
+
+    /** @override */
+    fetchImportantSites: function() {
+      return cr.sendWithPromise('fetchImportantSites');
     },
 
     /** @override */