Add native_handle.h to gyp.

BUG=http://crbug.com/170345
TEST=Build all.
R=stefan@webrtc.org, wu@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/2009004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@4538 4adac7df-926f-26a2-2b94-8c16560cd09d
1 file changed