WebUI: Add password manager search feature. Also add tooltips for the URLs.

chrome/browser/resources/options/cookies_view.js

Index: chrome/browser/resources/options/cookies_view.js
===================================================================
--- chrome/browser/resources/options/cookies_view.js	(revision 86229)
+++ chrome/browser/resources/options/cookies_view.js	(working copy)
@@ -24,6 +24,20 @@
   CookiesView.prototype = {
     __proto__: OptionsPage.prototype,
 
+    /**
+     * The timer id of the timer set on search query change events.
+     * @type {number}
+     * @private
+     */
+    queryDelayTimerId_: 0,
+
+    /**
+     * The most recent search query, or null if the query is empty.
+     * @type {?string}
+     * @private
+     */
+    lastQuery_ : null,
+
     initializePage: function() {
       OptionsPage.prototype.initializePage.call(this);
 
@@ -40,8 +54,6 @@
       this.addEventListener('visibleChange', this.handleVisibleChange_);
     },
 
-    lastQuery_ : null,
-
     /**
      * Search cookie using text in |cookies-search-box|.
      */
@@ -54,12 +66,10 @@
       }
     },
 
-    queryDelayTimerId_: 0,
-
     /**
      * Handles search query changes.
+     * @param {!Event} e The event object.
      * @private
-     * @param {!Event} e The event object.
      */
     handleSearchQueryChange_: function(e) {
       if (this.queryDelayTimerId_)