Clean up the CrossSiteIFrameLoadingStrategy class, removing some dead code,
adding comments to clarify what is going on, and making it throw an error
which is more explicit about what triggered the error

Review at http://gwt-code-reviews.appspot.com/1413801


git-svn-id: https://google-web-toolkit.googlecode.com/svn/trunk@10002 8db76d5a-ed1c-0410-87a9-c151d255dfc7
2 files changed