Update Polymer from 1.2.1 -> 1.2.3

third_party/polymer/v1_0/components-chromium/iron-overlay-behavior/bower.json

Index: third_party/polymer/v1_0/components-chromium/iron-overlay-behavior/bower.json
diff --git a/third_party/polymer/v1_0/components-chromium/iron-overlay-behavior/bower.json b/third_party/polymer/v1_0/components-chromium/iron-overlay-behavior/bower.json
index 30a3f04d9159713329cd29b92aab43284b16b6a4..006602755ede29e4a3ea3923b7b2f4e90f753911 100644
--- a/third_party/polymer/v1_0/components-chromium/iron-overlay-behavior/bower.json
+++ b/third_party/polymer/v1_0/components-chromium/iron-overlay-behavior/bower.json
@@ -1,12 +1,10 @@
 {
   "name": "iron-overlay-behavior",
-  "version": "1.0.9",
+  "version": "1.1.1",
   "license": "http://polymer.github.io/LICENSE.txt",
   "description": "Provides a behavior for making an element an overlay",
   "private": true,
-  "main": [
-    "iron-overlay-behavior.html"
-  ],
+  "main": "iron-overlay-behavior.html",
   "keywords": [
     "web-components",
     "polymer",
@@ -31,7 +29,8 @@
     "iron-flex-layout": "PolymerElements/iron-flex-layout#^1.0.0",
     "iron-test-helpers": "PolymerElements/iron-test-helpers#^1.0.0",
     "test-fixture": "PolymerElements/test-fixture#^1.0.0",
-    "web-component-tester": "*",
+    "web-component-tester": "polymer/web-component-tester#^3.4.0",
     "webcomponentsjs": "webcomponents/webcomponentsjs#^0.7.0"
-  }
+  },
+  "ignore": []
 }