XRE_InitEmbeddingType missing?

Hi all,

I had some code that used to work (with xulrunner 1.9.2), but does not 
even compile with xulrunner 2.0 (xulrunner 7.0 as the OS - Fedora 15 - 
reports it).
One of the most puzzling error is that the symbol XRE_InitEmbeddingType 
is undefined. And indeed, looking all the files in 
/usr/include/xulrunner-sdk-2, none of them contains this symbol.

What has happened to it?
Is there a guide on what changed, and how can I embed now?

George