[MD Settings] Implement search in material design passwords.

chrome/browser/resources/settings/settings_page/settings_subpage.js

Index: chrome/browser/resources/settings/settings_page/settings_subpage.js
diff --git a/chrome/browser/resources/settings/settings_page/settings_subpage.js b/chrome/browser/resources/settings/settings_page/settings_subpage.js
index 397e89addb82ae525d02da1d5539b4da745a95d3..07aeaee853883a7fddd9b6f4052254ccab8cc4c5 100644
--- a/chrome/browser/resources/settings/settings_page/settings_subpage.js
+++ b/chrome/browser/resources/settings/settings_page/settings_subpage.js
@@ -20,6 +20,15 @@ Polymer({
 
   properties: {
     pageTitle: String,
+
+    /** Setting a |searchLabel| will enable search. */
+    searchLabel: String,
+
+    searchTerm: {
+      type: String,
+      notify: true,
+      value: '',
+    },
   },
 
   /** @private */
@@ -27,4 +36,9 @@ Polymer({
     // Event is caught by settings-animated-pages.
     this.fire('subpage-back');
   },
+
+  /** @private */
+  onSearchChanged_: function(e) {
+    this.searchTerm = e.detail;
+  },
 });