Update DEPS comment and remove tabs from common.gypi.

TBR=wu@webrtc.org
BUG=
TEST=

Review URL: https://webrtc-codereview.appspot.com/575005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@2198 4adac7df-926f-26a2-2b94-8c16560cd09d
2 files changed