Fixing a nit in the unittest

This caused some of the build bots to fail.

Review URL: http://webrtc-codereview.appspot.com/324005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@1170 4adac7df-926f-26a2-2b94-8c16560cd09d

src/modules/rtp_rtcp/source/rtp_format_vp8_unittest.cc

@@ -64,6 +64,7 @@ void RtpFormatVp8Test::SetUp() {
   hdr_info_.pictureId = kNoPictureId;
   hdr_info_.nonReference = false;
   hdr_info_.temporalIdx = kNoTemporalIdx;
+  hdr_info_.layerSync = false;
   hdr_info_.tl0PicIdx = kNoTl0PicIdx;
   hdr_info_.keyIdx = kNoKeyIdx;
 }