Keep statistics for chosen intra modes in keyframes also.
Keep statistics for chosen intra modes in keyframes also.

Change-Id: Ibfecf1fb0fcf51fb349746fec015b1a3e44a4530

vasilvv/esvp8,Topopiccione/libvpx,mbebenita/aom,Distrotech/libvpx,hsueceumd/test_hui,kim42083/webm.libvpx,turbulenz/libvpx,felipebetancur/libvpx,openpeer/libvpx_new,Maria1099/webm.libvpx,reimaginemedia/webm.libvpx,zofuthan/libvpx,jmvalin/aom,stewnorriss/libvpx,cinema6/libvpx,abwiz0086/webm.libvpx,thdav/aom,matanbs/vp982,mbebenita/aom,matanbs/vp982,ittiamvpx/libvpx-1,turbulenz/libvpx,n4t/libvpx,abwiz0086/webm.libvpx,webmproject/libvpx,Laknot/libvpx,liqianggao/libvpx,turbulenz/libvpx,Suvarna1488/webm.libvpx,kalli123/webm.libvpx,luctrudeau/aom,charup/https---github.com-webmproject-libvpx-,matanbs/vp982,smarter/aom,GrokImageCompression/aom,kim42083/webm.libvpx,abwiz0086/webm.libvpx,kalli123/webm.libvpx,cinema6/libvpx,jdm/libvpx,turbulenz/libvpx,liqianggao/libvpx,shacklettbp/aom,kleopatra999/webm.libvpx,Acidburn0zzz/webm.libvpx,webmproject/libvpx,Acidburn0zzz/webm.libvpx,turbulenz/libvpx,mwgoldsmith/vpx,smarter/aom,gshORTON/webm.libvpx,WebRTC-Labs/libvpx,matanbs/webm.libvpx,cinema6/libvpx,running770/libvpx,mbebenita/aom,turbulenz/libvpx,mwgoldsmith/libvpx,jdm/libvpx,abwiz0086/webm.libvpx,VTCSecureLLC/libvpx,jacklicn/webm.libvpx,turbulenz/libvpx,jacklicn/webm.libvpx,luctrudeau/aom,stewnorriss/libvpx,liqianggao/libvpx,jdm/libvpx,matanbs/vp982,charup/https---github.com-webmproject-libvpx-,reimaginemedia/webm.libvpx,turbulenz/libvpx,altogother/webm.libvpx,jacklicn/webm.libvpx,Suvarna1488/webm.libvpx,shyamalschandra/libvpx,Laknot/libvpx,goodleixiao/vpx,running770/libvpx,pcwalton/libvpx,iniwf/webm.libvpx,GrokImageCompression/aom,GrokImageCompression/aom,goodleixiao/vpx,Topopiccione/libvpx,Maria1099/webm.libvpx,mwgoldsmith/libvpx,gshORTON/webm.libvpx,VTCSecureLLC/libvpx,hsueceumd/test_hui,ittiamvpx/libvpx-1,GrokImageCompression/aom,smarter/aom,jmvalin/aom,charup/https---github.com-webmproject-libvpx-,shareefalis/libvpx,ittiamvpx/libvpx,matanbs/webm.libvpx,Acidburn0zzz/webm.libvpx,luctrudeau/aom,running770/libvpx,iniwf/webm.libvpx,abwiz0086/webm.libvpx,matanbs/webm.libvpx,ShiftMediaProject/libvpx,felipebetancur/libvpx,shacklettbp/aom,liqianggao/libvpx,n4t/libvpx,sanyaade-teachings/libvpx,GrokImageCompression/aom,shyamalschandra/libvpx,pcwalton/libvpx,n4t/libvpx,lyx2014/libvpx_c,mwgoldsmith/libvpx,kleopatra999/webm.libvpx,reimaginemedia/webm.libvpx,jmvalin/aom,vasilvv/esvp8,ittiamvpx/libvpx-1,openpeer/libvpx_new,Topopiccione/libvpx,gshORTON/webm.libvpx,ShiftMediaProject/libvpx,matanbs/vp982,Suvarna1488/webm.libvpx,openpeer/libvpx_new,altogother/webm.libvpx,charup/https---github.com-webmproject-libvpx-,gshORTON/webm.libvpx,cinema6/libvpx,Topopiccione/libvpx,mwgoldsmith/vpx,WebRTC-Labs/libvpx,thdav/aom,jdm/libvpx,vasilvv/esvp8,ShiftMediaProject/libvpx,mbebenita/aom,goodleixiao/vpx,felipebetancur/libvpx,mbebenita/aom,cinema6/libvpx,Laknot/libvpx,kim42083/webm.libvpx,stewnorriss/libvpx,jacklicn/webm.libvpx,n4t/libvpx,kim42083/webm.libvpx,ittiamvpx/libvpx-1,Maria1099/webm.libvpx,mbebenita/aom,smarter/aom,kalli123/webm.libvpx,openpeer/libvpx_new,sanyaade-teachings/libvpx,shacklettbp/aom,jmvalin/aom,lyx2014/libvpx_c,felipebetancur/libvpx,Distrotech/libvpx,kalli123/webm.libvpx,vasilvv/esvp8,altogother/webm.libvpx,jdm/libvpx,Maria1099/webm.libvpx,shyamalschandra/libvpx,Maria1099/webm.libvpx,shacklettbp/aom,zofuthan/libvpx,zofuthan/libvpx,VTCSecureLLC/libvpx,ittiamvpx/libvpx-1,smarter/aom,thdav/aom,liqianggao/libvpx,Laknot/libvpx,Maria1099/webm.libvpx,goodleixiao/vpx,running770/libvpx,sanyaade-teachings/libvpx,mbebenita/aom,lyx2014/libvpx_c,Distrotech/libvpx,WebRTC-Labs/libvpx,ittiamvpx/libvpx,Laknot/libvpx,zofuthan/libvpx,shacklettbp/aom,thdav/aom,gshORTON/webm.libvpx,jmvalin/aom,goodleixiao/vpx,reimaginemedia/webm.libvpx,shareefalis/libvpx,mwgoldsmith/vpx,gshORTON/webm.libvpx,Suvarna1488/webm.libvpx,pcwalton/libvpx,webmproject/libvpx,turbulenz/libvpx,altogother/webm.libvpx,luctrudeau/aom,sanyaade-teachings/libvpx,VTCSecureLLC/libvpx,Suvarna1488/webm.libvpx,felipebetancur/libvpx,jdm/libvpx,Topopiccione/libvpx,pcwalton/libvpx,charup/https---github.com-webmproject-libvpx-,jacklicn/webm.libvpx,shyamalschandra/libvpx,cinema6/libvpx,lyx2014/libvpx_c,mwgoldsmith/vpx,mwgoldsmith/libvpx,kleopatra999/webm.libvpx,mwgoldsmith/vpx,shareefalis/libvpx,mbebenita/aom,Laknot/libvpx,GrokImageCompression/aom,ittiamvpx/libvpx,iniwf/webm.libvpx,shareefalis/libvpx,jmvalin/aom,mwgoldsmith/libvpx,zofuthan/libvpx,Acidburn0zzz/webm.libvpx,jacklicn/webm.libvpx,Distrotech/libvpx,lyx2014/libvpx_c,n4t/libvpx,abwiz0086/webm.libvpx,Distrotech/libvpx,smarter/aom,matanbs/webm.libvpx,matanbs/vp982,charup/https---github.com-webmproject-libvpx-,shacklettbp/aom,thdav/aom,ittiamvpx/libvpx,kleopatra999/webm.libvpx,reimaginemedia/webm.libvpx,ShiftMediaProject/libvpx,liqianggao/libvpx,shyamalschandra/libvpx,mwgoldsmith/libvpx,ShiftMediaProject/libvpx,kleopatra999/webm.libvpx,vasilvv/esvp8,stewnorriss/libvpx,openpeer/libvpx_new,running770/libvpx,shareefalis/libvpx,hsueceumd/test_hui,stewnorriss/libvpx,altogother/webm.libvpx,openpeer/libvpx_new,running770/libvpx,ittiamvpx/libvpx,cinema6/libvpx,iniwf/webm.libvpx,goodleixiao/vpx,webmproject/libvpx,kalli123/webm.libvpx,ittiamvpx/libvpx,Acidburn0zzz/webm.libvpx,kalli123/webm.libvpx,sanyaade-teachings/libvpx,zofuthan/libvpx,matanbs/webm.libvpx,WebRTC-Labs/libvpx,Acidburn0zzz/webm.libvpx,altogother/webm.libvpx,shyamalschandra/libvpx,hsueceumd/test_hui,Topopiccione/libvpx,hsueceumd/test_hui,WebRTC-Labs/libvpx,iniwf/webm.libvpx,vasilvv/esvp8,ittiamvpx/libvpx-1,webmproject/libvpx,lyx2014/libvpx_c,thdav/aom,shareefalis/libvpx,kim42083/webm.libvpx,pcwalton/libvpx,VTCSecureLLC/libvpx,mwgoldsmith/vpx,felipebetancur/libvpx,stewnorriss/libvpx,iniwf/webm.libvpx,luctrudeau/aom,luctrudeau/aom,matanbs/vp982,pcwalton/libvpx,vasilvv/esvp8,Suvarna1488/webm.libvpx,webmproject/libvpx,Distrotech/libvpx,VTCSecureLLC/libvpx,mbebenita/aom,kleopatra999/webm.libvpx,matanbs/webm.libvpx,kim42083/webm.libvpx,hsueceumd/test_hui,reimaginemedia/webm.libvpx