lgtm
http://codereview.appspot.com/2773041/diff/1/java/gadgets/src/main/java/org/apache/shindig/gadgets/uri/DefaultIframeUriManager.java File java/gadgets/src/main/java/org/apache/shindig/gadgets/uri/DefaultIframeUriManager.java (right): http://codereview.appspot.com/2773041/diff/1/java/gadgets/src/main/java/org/apache/shindig/gadgets/uri/DefaultIframeUriManager.java#newcode75 java/gadgets/src/main/java/org/apache/shindig/gadgets/uri/DefaultIframeUriManager.java:75: config.addConfigObserver(this); This can be gated by ldEnabled http://codereview.appspot.com/2773041/
