Run bower update

third_party/polymer/components/webcomponentsjs/bower.json

Index: third_party/polymer/components/webcomponentsjs/bower.json
diff --git a/third_party/polymer/components/webcomponentsjs/bower.json b/third_party/polymer/components/webcomponentsjs/bower.json
index 925f321fcd44903e5fedb494aa8fe8759c30afdc..36d2b0e5c59e59777c1482c1ff36f198419b6a78 100644
--- a/third_party/polymer/components/webcomponentsjs/bower.json
+++ b/third_party/polymer/components/webcomponentsjs/bower.json
@@ -1,21 +1,14 @@
 {
   "name": "webcomponentsjs",
   "main": "webcomponents.js",
-  "version": "0.7.22",
+  "version": "0.6.1",
   "homepage": "http://webcomponents.org",
   "authors": [
     "The Polymer Authors"
   ],
-  "repository": {
-    "type": "git",
-    "url": "https://github.com/webcomponents/webcomponentsjs.git"
-  },
   "keywords": [
     "webcomponents"
   ],
   "license": "BSD",
-  "ignore": [],
-  "devDependencies": {
-    "web-component-tester": "^4.0.1"
-  }
+  "ignore": []
 }