I was using the js bindings on 2.x and today updated to 3.0beta.
It seems that ‘obfuscate_exclude_cocos2d.js’ and ‘obfuscate_exclude_chipmunk.js’ are missing from 3.0beta.
The file tools/closure-compiler/template.xml still references these files so I don’t know whether they are not required anymore and template.xml must be corrected or they are still required but missing from the 3.0beta.