[pinpoint] Add iron-form and paper-checkbox to polymer components.

third_party/polymer/components/iron-ajax/CONTRIBUTING.md

Index: third_party/polymer/components/iron-ajax/CONTRIBUTING.md
diff --git a/third_party/polymer/components/iron-selector/CONTRIBUTING.md b/third_party/polymer/components/iron-ajax/CONTRIBUTING.md
similarity index 96%
copy from third_party/polymer/components/iron-selector/CONTRIBUTING.md
copy to third_party/polymer/components/iron-ajax/CONTRIBUTING.md
index f147978a3e115bd81dae5d961a5330d5f886cf26..543fda4fbd874ef931fd90708fb89416b3901904 100644
--- a/third_party/polymer/components/iron-selector/CONTRIBUTING.md
+++ b/third_party/polymer/components/iron-ajax/CONTRIBUTING.md
@@ -1,4 +1,3 @@
-
 <!--
 This file is autogenerated based on
 https://github.com/PolymerElements/ContributionGuide/blob/master/CONTRIBUTING.md
@@ -9,8 +8,9 @@ If you edit this file, your changes will get overridden :)
 You can however override the jsbin link with one that's customized to this
 specific element:
 
-jsbin=https://jsbin.com/cagaye/edit?html,output
+jsbin=https://jsbin.com/zeriha/2/edit?html,output
 -->
+
 # Polymer Elements
 ## Guide for Contributors
 
@@ -46,7 +46,7 @@ Polymer Elements are built in the open, and the Polymer authors eagerly encourag
  3. Click the `paper-foo` element.
  ```
 
- 2. **A reduced test case that demonstrates the problem.** If possible, please include the test case as a JSBin. Start with this template to easily import and use relevant Polymer Elements: [https://jsbin.com/cagaye/edit?html,output](https://jsbin.com/cagaye/edit?html,output).
+ 2. **A reduced test case that demonstrates the problem.** If possible, please include the test case as a JSBin. Start with this template to easily import and use relevant Polymer Elements: [https://jsbin.com/zeriha/2/edit?html,output](https://jsbin.com/zeriha/2/edit?html,output).
 
  3. **A list of browsers where the problem occurs.** This can be skipped if the problem is the same across all browsers.