Fix Polymer licensing issues

third_party/polymer/v1_0/components-chromium/iron-ajax/README.md

Index: third_party/polymer/v1_0/components-chromium/iron-ajax/README.md
diff --git a/third_party/polymer/v1_0/components-chromium/iron-ajax/README.md b/third_party/polymer/v1_0/components-chromium/iron-ajax/README.md
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-iron-ajax
-=========
-
-The `iron-ajax` element exposes network request functionality.
-
-```html
-<iron-ajax
-    auto
-    url="http://gdata.youtube.com/feeds/api/videos/"
-    params='{"alt":"json", "q":"chrome"}'
-    handle-as="json"
-    on-response="handleResponse"></iron-ajax>
-```
-
-With `auto` set to `true`, the element performs a request whenever
-its `url`, `params` or `body` properties are changed. Automatically generated
-requests will be debounced in the case that multiple attributes are changed
-sequentially.
-
-Note: The `params` attribute must be double quoted JSON.
-
-You can trigger a request explicitly by calling `generateRequest` on the
-element.