Update Polymer components.

third_party/polymer/components/iron-pages/.travis.yml

Index: third_party/polymer/components/iron-pages/.travis.yml
diff --git a/third_party/polymer/components/iron-pages/.travis.yml b/third_party/polymer/components/iron-pages/.travis.yml
index 3e2c8a54e9fcf8ee3766f35797eae177daa61f76..6a639deb4e31e6bbfda32282ff463050ce0e60f3 100644
--- a/third_party/polymer/components/iron-pages/.travis.yml
+++ b/third_party/polymer/components/iron-pages/.travis.yml
@@ -1,23 +1,24 @@
 language: node_js
 sudo: required
 before_script:
-- npm install -g bower polylint web-component-tester
-- bower install
-- polylint
+  - npm install -g bower polylint web-component-tester
+  - bower install
+  - polylint
 env:
   global:
-  - secure: Nv52xUhhZNbvdXIs+8JV61yREtAZN5i2ZHO6uZVonGR/Y/U8SA3AcDjrPLd6VgFmasM58EpPGQGToK46r9C+h/jLWc7d/+7xn/9sphg6qQhQ5FkS/LYaTMmzCmonu79h/TqpuuYQWJqjEBM3LpoYJSMum/V34paPBU9AEK0Pd5A=
-  - secure: fE00ZxqCvRMPXvSIghE/0wYbFORFGO4IFzaZbOxanAe7PBKDmdPBkzodo9BEgOw1cB2zw2uXMEYGf3jEZH+vens5ycngF8X/iQRCcPGpHjKIbkBtHvYQoi4ZwQf48GPtdBkMZLg7LcA4N2ScypU33X0q30hQ6BgzTduumuHlKCo=
-node_js: stable
+    - secure: >-
+        Nv52xUhhZNbvdXIs+8JV61yREtAZN5i2ZHO6uZVonGR/Y/U8SA3AcDjrPLd6VgFmasM58EpPGQGToK46r9C+h/jLWc7d/+7xn/9sphg6qQhQ5FkS/LYaTMmzCmonu79h/TqpuuYQWJqjEBM3LpoYJSMum/V34paPBU9AEK0Pd5A=
+    - secure: >-
+        fE00ZxqCvRMPXvSIghE/0wYbFORFGO4IFzaZbOxanAe7PBKDmdPBkzodo9BEgOw1cB2zw2uXMEYGf3jEZH+vens5ycngF8X/iQRCcPGpHjKIbkBtHvYQoi4ZwQf48GPtdBkMZLg7LcA4N2ScypU33X0q30hQ6BgzTduumuHlKCo=
+node_js: '6'
 addons:
-  firefox: '46.0'
+  firefox: latest
   apt:
     sources:
-    - google-chrome
+      - google-chrome
     packages:
-    - google-chrome-stable
-  sauce_connect: true
+      - google-chrome-stable
 script:
-- xvfb-run wct
-- if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then wct -s 'default'; fi
+  - xvfb-run wct
+  - 'if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then wct -s ''default''; fi'
 dist: trusty