Fix android_clang build.

BUG=
R=kjellander@webrtc.org, tkchin@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/30879004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7630 4adac7df-926f-26a2-2b94-8c16560cd09d