[Polymer] update third_party polymer

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

Index: third_party/polymer/v1_0/components-chromium/iron-menu-behavior/iron-menu-behavior-extracted.js
diff --git a/third_party/polymer/v1_0/components-chromium/iron-menu-behavior/iron-menu-behavior-extracted.js b/third_party/polymer/v1_0/components-chromium/iron-menu-behavior/iron-menu-behavior-extracted.js
index e8b03e9e97eadee3c144ba4288ea6b96e92832d2..55c59dd672c345d63fae66bc3cf447dbbd6fe1f2 100644
--- a/third_party/polymer/v1_0/components-chromium/iron-menu-behavior/iron-menu-behavior-extracted.js
+++ b/third_party/polymer/v1_0/components-chromium/iron-menu-behavior/iron-menu-behavior-extracted.js
@@ -112,7 +112,8 @@
         var attr = this.attrForItemTitle || 'textContent';
         var title = item[attr] || item.getAttribute(attr);
 
-        if (title && title.trim().charAt(0).toLowerCase() === String.fromCharCode(event.keyCode).toLowerCase()) {
+        if (!item.hasAttribute('disabled') && title && 
+            title.trim().charAt(0).toLowerCase() === String.fromCharCode(event.keyCode).toLowerCase()) {
           this._setFocusedItem(item);
           break;
         }
@@ -121,21 +122,34 @@
 
     /**
      * Focuses the previous item (relative to the currently focused item) in the
-     * menu.
+     * menu, disabled items will be skipped.
      */
     _focusPrevious: function() {
       var length = this.items.length;
-      var index = (Number(this.indexOf(this.focusedItem)) - 1 + length) % length;
-      this._setFocusedItem(this.items[index]);
+      var curFocusIndex = Number(this.indexOf(this.focusedItem));
+      for (var i = 1; i < length; i++) {
+        var item = this.items[(curFocusIndex - i + length) % length];
+        if (!item.hasAttribute('disabled')) {
+          this._setFocusedItem(item);
+          return;
+        }
+      }
     },
 
     /**
      * Focuses the next item (relative to the currently focused item) in the
-     * menu.
+     * menu, disabled items will be skipped.
      */
     _focusNext: function() {
-      var index = (Number(this.indexOf(this.focusedItem)) + 1) % this.items.length;
-      this._setFocusedItem(this.items[index]);
+      var length = this.items.length;
+      var curFocusIndex = Number(this.indexOf(this.focusedItem));
+      for (var i = 1; i < length; i++) {
+        var item = this.items[(curFocusIndex + i) % length];
+        if (!item.hasAttribute('disabled')) {
+          this._setFocusedItem(item);
+          return;
+        }
+      }
     },
 
     /**
@@ -244,7 +258,8 @@
         if (selectedItem) {
           this._setFocusedItem(selectedItem);
         } else if (this.items[0]) {
-          this._setFocusedItem(this.items[0]);
+          // We find the first none-disabled item (if one exists)
+          this._focusNext();
         }
       });
     },