Correctly set the segment_id prediction flag and context
Correctly set the segment_id prediction flag and context

This fix a bug introduced by ac6093d179d8488f90bf10c6d0abcc48be327d28

Change-Id: I0700a4daf7a6a2471074f81a4596352287fb2ac9

kleopatra999/webm.libvpx,matanbs/webm.libvpx,VTCSecureLLC/libvpx,running770/libvpx,GrokImageCompression/aom,shacklettbp/aom,matanbs/webm.libvpx,goodleixiao/vpx,shareefalis/libvpx,Maria1099/webm.libvpx,Maria1099/webm.libvpx,Acidburn0zzz/webm.libvpx,kalli123/webm.libvpx,matanbs/webm.libvpx,ittiamvpx/libvpx,jmvalin/aom,mwgoldsmith/libvpx,kalli123/webm.libvpx,mwgoldsmith/libvpx,Laknot/libvpx,mwgoldsmith/vpx,VTCSecureLLC/libvpx,Suvarna1488/webm.libvpx,Laknot/libvpx,webmproject/libvpx,shyamalschandra/libvpx,GrokImageCompression/aom,goodleixiao/vpx,ittiamvpx/libvpx-1,lyx2014/libvpx_c,luctrudeau/aom,altogother/webm.libvpx,lyx2014/libvpx_c,matanbs/vp982,mbebenita/aom,Acidburn0zzz/webm.libvpx,openpeer/libvpx_new,jacklicn/webm.libvpx,gshORTON/webm.libvpx,hsueceumd/test_hui,running770/libvpx,matanbs/vp982,shyamalschandra/libvpx,webmproject/libvpx,turbulenz/libvpx,running770/libvpx,n4t/libvpx,sanyaade-teachings/libvpx,Suvarna1488/webm.libvpx,jdm/libvpx,hsueceumd/test_hui,Topopiccione/libvpx,turbulenz/libvpx,ittiamvpx/libvpx,mwgoldsmith/libvpx,gshORTON/webm.libvpx,ittiamvpx/libvpx,matanbs/webm.libvpx,shyamalschandra/libvpx,kleopatra999/webm.libvpx,GrokImageCompression/aom,iniwf/webm.libvpx,cinema6/libvpx,liqianggao/libvpx,VTCSecureLLC/libvpx,cinema6/libvpx,ittiamvpx/libvpx-1,charup/https---github.com-webmproject-libvpx-,shareefalis/libvpx,Maria1099/webm.libvpx,openpeer/libvpx_new,thdav/aom,Acidburn0zzz/webm.libvpx,ittiamvpx/libvpx-1,hsueceumd/test_hui,reimaginemedia/webm.libvpx,running770/libvpx,mbebenita/aom,abwiz0086/webm.libvpx,matanbs/webm.libvpx,Suvarna1488/webm.libvpx,smarter/aom,mwgoldsmith/vpx,stewnorriss/libvpx,running770/libvpx,kim42083/webm.libvpx,openpeer/libvpx_new,matanbs/vp982,Topopiccione/libvpx,shareefalis/libvpx,ShiftMediaProject/libvpx,sanyaade-teachings/libvpx,Distrotech/libvpx,sanyaade-teachings/libvpx,luctrudeau/aom,WebRTC-Labs/libvpx,mwgoldsmith/vpx,kalli123/webm.libvpx,goodleixiao/vpx,shacklettbp/aom,ShiftMediaProject/libvpx,hsueceumd/test_hui,jmvalin/aom,ShiftMediaProject/libvpx,reimaginemedia/webm.libvpx,reimaginemedia/webm.libvpx,charup/https---github.com-webmproject-libvpx-,smarter/aom,shareefalis/libvpx,matanbs/vp982,kleopatra999/webm.libvpx,mbebenita/aom,goodleixiao/vpx,hsueceumd/test_hui,ittiamvpx/libvpx,zofuthan/libvpx,gshORTON/webm.libvpx,gshORTON/webm.libvpx,stewnorriss/libvpx,reimaginemedia/webm.libvpx,zofuthan/libvpx,thdav/aom,zofuthan/libvpx,Maria1099/webm.libvpx,luctrudeau/aom,VTCSecureLLC/libvpx,Distrotech/libvpx,ShiftMediaProject/libvpx,kalli123/webm.libvpx,Distrotech/libvpx,Laknot/libvpx,n4t/libvpx,GrokImageCompression/aom,shareefalis/libvpx,turbulenz/libvpx,mbebenita/aom,ittiamvpx/libvpx,altogother/webm.libvpx,shacklettbp/aom,n4t/libvpx,n4t/libvpx,liqianggao/libvpx,mwgoldsmith/vpx,felipebetancur/libvpx,Acidburn0zzz/webm.libvpx,Maria1099/webm.libvpx,cinema6/libvpx,ittiamvpx/libvpx,charup/https---github.com-webmproject-libvpx-,lyx2014/libvpx_c,Distrotech/libvpx,zofuthan/libvpx,kim42083/webm.libvpx,openpeer/libvpx_new,mbebenita/aom,jacklicn/webm.libvpx,iniwf/webm.libvpx,kleopatra999/webm.libvpx,iniwf/webm.libvpx,Acidburn0zzz/webm.libvpx,running770/libvpx,Laknot/libvpx,stewnorriss/libvpx,kleopatra999/webm.libvpx,GrokImageCompression/aom,mwgoldsmith/libvpx,WebRTC-Labs/libvpx,altogother/webm.libvpx,smarter/aom,altogother/webm.libvpx,liqianggao/libvpx,gshORTON/webm.libvpx,kalli123/webm.libvpx,mbebenita/aom,WebRTC-Labs/libvpx,Topopiccione/libvpx,Distrotech/libvpx,VTCSecureLLC/libvpx,iniwf/webm.libvpx,turbulenz/libvpx,jacklicn/webm.libvpx,cinema6/libvpx,kim42083/webm.libvpx,mwgoldsmith/libvpx,Distrotech/libvpx,shyamalschandra/libvpx,openpeer/libvpx_new,Suvarna1488/webm.libvpx,thdav/aom,pcwalton/libvpx,n4t/libvpx,abwiz0086/webm.libvpx,openpeer/libvpx_new,WebRTC-Labs/libvpx,liqianggao/libvpx,gshORTON/webm.libvpx,mbebenita/aom,altogother/webm.libvpx,pcwalton/libvpx,turbulenz/libvpx,felipebetancur/libvpx,cinema6/libvpx,zofuthan/libvpx,charup/https---github.com-webmproject-libvpx-,stewnorriss/libvpx,Topopiccione/libvpx,kim42083/webm.libvpx,altogother/webm.libvpx,WebRTC-Labs/libvpx,jdm/libvpx,cinema6/libvpx,pcwalton/libvpx,webmproject/libvpx,sanyaade-teachings/libvpx,felipebetancur/libvpx,kim42083/webm.libvpx,abwiz0086/webm.libvpx,shacklettbp/aom,Laknot/libvpx,jmvalin/aom,Suvarna1488/webm.libvpx,smarter/aom,ittiamvpx/libvpx-1,Suvarna1488/webm.libvpx,kalli123/webm.libvpx,jacklicn/webm.libvpx,pcwalton/libvpx,smarter/aom,VTCSecureLLC/libvpx,GrokImageCompression/aom,pcwalton/libvpx,sanyaade-teachings/libvpx,jmvalin/aom,charup/https---github.com-webmproject-libvpx-,abwiz0086/webm.libvpx,charup/https---github.com-webmproject-libvpx-,Topopiccione/libvpx,jacklicn/webm.libvpx,goodleixiao/vpx,jdm/libvpx,thdav/aom,shacklettbp/aom,kleopatra999/webm.libvpx,goodleixiao/vpx,turbulenz/libvpx,luctrudeau/aom,liqianggao/libvpx,webmproject/libvpx,turbulenz/libvpx,mbebenita/aom,Acidburn0zzz/webm.libvpx,jdm/libvpx,lyx2014/libvpx_c,zofuthan/libvpx,webmproject/libvpx,thdav/aom,jacklicn/webm.libvpx,mwgoldsmith/vpx,smar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