LGTM.
Since you have already taken care of the merge error, there are only
minor nits below. Plus, the comments I sent you earlier. Please submit
after these changes.
One other thing we discussed was to add a RequestFactoryTestSuite class.
If you'd like, you can just add a TODO for now.
I cursorily looked at the patch. It looks good but it seems you forgot
to upload the changes to the files in the bikeshed dir. I also had a few
minor comments, noted below.
Let me know when you update the complete patch.
http://gwt-code-reviews.appspot.com/700802/diff/2001/3004
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