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third_party/polymer/v1_0/components-chromium/iron-a11y-keys-behavior/iron-a11y-keys-behavior-extracted.js

 (function() {
     'use strict';
 
     /**
      * Chrome uses an older version of DOM Level 3 Keyboard Events
      *
      * Most keys are labeled as text, but some are Unicode codepoints.
      * Values taken from: http://www.w3.org/TR/2007/WD-DOM-Level-3-Events-20071221/keyset.html#KeySet-Set
      */
     var KEY_IDENTIFIER = {
@@ skipping 282 matching lines @@
       },
 
       observers: [
         '_resetKeyEventListeners(keyEventTarget, _boundKeyHandlers)'
       ],
 
 
       /**
        * To be used to express what combination of keys  will trigger the relative
        * callback. e.g. `keyBindings: { 'esc': '_onEscPressed'}`
-       * @type {Object}
+       * @type {!Object}
        */
       keyBindings: {},
 
       registered: function() {
         this._prepKeyBindings();
       },
 
       attached: function() {
         this._listenKeyEventListeners();
       },
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           detail: detail,
           cancelable: true
         });
         this[handlerName].call(this, event);
         if (event.defaultPrevented) {
           keyboardEvent.preventDefault();
         }
       }
     };
   })();