Merge "Combining fb_idx_ref_cnt[] and yv12_fb[] arrays."

diff --cc vp9/common/vp9_onyxc_int.h
Simple merge

diff --cc vp9/decoder/vp9_decodeframe.c
Simple merge

diff --cc vp9/decoder/vp9_onyxd_if.c
Simple merge

diff --cc vp9/encoder/vp9_onyx_if.c
Simple merge

diff --cc vp9/encoder/vp9_onyx_int.h
Simple merge

diff --cc vp9/encoder/vp9_rdopt.c
Simple merge