WebUI: For cr-dialog, handle Enter keys in paper-inputs.

chrome/browser/resources/settings/passwords_and_forms_page/password_edit_dialog.js

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview 'password-edit-dialog' is the dialog that allows showing a
  *     saved password.
  */
 
 (function() {
@@ skipping 52 matching lines @@
    * @param {string} password
    * @private
    */
   getPassword_: function(item, password) {
     if (password)
       return password;
     return item ? ' '.repeat(item.numCharactersInPassword) : '';
   },
 
   /**
-   * @param {!KeyboardEvent} e
-   * @private
-   */
-  onKeypress_: function(e) {
-    if (e.key == 'Enter' && !this.$.actionButton.disabled)
-      this.onActionButtonTap_();
-  },
-
-  /**
    * Handler for tapping the show/hide button. Will fire an event to request the
    * password for this login pair.
    * @private
    */
   onShowPasswordButtonTap_: function() {
     if (this.password)
       this.password = '';
     else
       this.fire('show-password', this.item.loginPair);  // Request the password.
   },
 
   /**
    * Handler for tapping the 'done' button. Should just dismiss the dialog.
    * @private
    */
   onActionButtonTap_: function() {
     this.close();
   },
 
   /**
    * @param {!Event} event
    * @private
    */
   onReadonlyInputTap_: function(event) {
     /** @type {!PaperInputElement} */ (Polymer.dom(event).localTarget)
         .inputElement.select();
   }
 });
 })();