Fix broken perf prints.
Fix broken perf prints.

R=pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/51709004

Cr-Original-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#9042}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 95702246d7e5bcfee18a380be442c595b21b2bd4

jchavanton/webrtc,sippet/webrtc,jchavanton/webrtc,aleonliao/webrtc-trunk,sippet/webrtc,jchavanton/webrtc,Alkalyne/webrtctrunk,Alkalyne/webrtctrunk,Alkalyne/webrtctrunk,krieger-od/webrtc,jchavanton/webrtc,jchavanton/webrtc,sippet/webrtc,jchavanton/webrtc,aleonliao/webrtc-trunk,krieger-od/webrtc,sippet/webrtc,krieger-od/webrtc,Alkalyne/webrtctrunk,aleonliao/webrtc-trunk,jchavanton/webrtc,sippet/webrtc,Alkalyne/webrtctrunk,aleonliao/webrtc-trunk,Alkalyne/webrtctrunk,sippet/webrtc,Alkalyne/webrtctrunk,aleonliao/webrtc-trunk,krieger-od/webrtc,Alkalyne/webrtctrunk,krieger-od/webrtc,krieger-od/webrtc,aleonliao/webrtc-trunk