valgrind caught uninitialized cond
valgrind caught uninitialized cond

If the decoder crashes and returned an error before it set up
block offsets but after it set up frame buffers.   We had a
problem decoding the next keyframe because the block offsets
were never set.

Change-Id: Ied2866e9770d80fc66241d5e0d978d4f5f9cdd89

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