When building chromium targets that depend on webrtc, compiler settings must have the include path to webrtc and webrtc-specific defines that the headers may depend on. Added direct_dependent_settings in common.gyp, so that all webrtc target propagate these settings to dependencies. R=andrew@webrtc.org, tommi@webrtc.org Review URL: https://webrtc-codereview.appspot.com/1371005 git-svn-id: http://webrtc.googlecode.com/svn/trunk@4084 4adac7df-926f-26a2-2b94-8c16560cd09d