Update Polymer from 1.2.1 -> 1.2.3

third_party/polymer/v1_0/components-chromium/iron-pages/.bower.json

Index: third_party/polymer/v1_0/components-chromium/iron-pages/.bower.json
diff --git a/third_party/polymer/v1_0/components-chromium/iron-pages/.bower.json b/third_party/polymer/v1_0/components-chromium/iron-pages/.bower.json
index da5d772224f6a6467fe3ae450e18d3654407c4ed..ac5eaea6eeafc7d426f7f50a51bf0a4d0b993894 100644
--- a/third_party/polymer/v1_0/components-chromium/iron-pages/.bower.json
+++ b/third_party/polymer/v1_0/components-chromium/iron-pages/.bower.json
@@ -1,6 +1,6 @@
 {
   "name": "iron-pages",
-  "version": "1.0.3",
+  "version": "1.0.4",
   "license": "http://polymer.github.io/LICENSE.txt",
   "description": "Organizes a set of pages and shows one at a time",
   "main": "iron-pages.html",
@@ -26,15 +26,16 @@
     "paper-styles": "polymerelements/paper-styles#^1.0.2",
     "iron-component-page": "polymerelements/iron-component-page#^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": [],
   "homepage": "https://github.com/PolymerElements/iron-pages",
-  "_release": "1.0.3",
+  "_release": "1.0.4",
   "_resolution": {
     "type": "version",
-    "tag": "v1.0.3",
-    "commit": "ca6e7892786d60d8cb6935d8376b27c3851fdbf5"
+    "tag": "v1.0.4",
+    "commit": "238695c7ebf765af321e81c9a5a33a7733f1f6bf"
   },
   "_source": "git://github.com/PolymerElements/iron-pages.git",
   "_target": "^1.0.0",