Don't block committing if the Chromium tree is closed
Don't block committing if the Chromium tree is closed

R=jamesr@chromium.org

Review URL: https://codereview.chromium.org/663343004

collinjackson/mojo,afandria/mojo,chinmaygarde/mojo,jianglu/mojo,jianglu/mojo,jianglu/mojo,afandria/mojo,afandria/mojo,jianglu/mojo,chinmaygarde/mojo,chinmaygarde/mojo,collinjackson/mojo,chinmaygarde/mojo,collinjackson/mojo,jianglu/mojo,afandria/mojo,chinmaygarde/mojo,jianglu/mojo,collinjackson/mojo,chinmaygarde/mojo,collinjackson/mojo,afandria/mojo,jianglu/mojo,collinjackson/mojo,collinjackson/mojo,afandria/mojo,chinmaygarde/mojo,afandria/mojo,jianglu/mojo,afandria/mojo,collinjackson/mojo,chinmaygarde/mojo,collinjackson/mojo,chinmaygarde/mojo