Add upload and commit checks to a common function.

Add HasDescription and HasNoStrayWhitespace checks.

BUG=none
TEST=uploaded a dummy CL with violations.

Review URL: https://webrtc-codereview.appspot.com/372004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@1556 4adac7df-926f-26a2-2b94-8c16560cd09d
1 file changed