9e7fec216e
from vp8cx_encode_intra_macro_block. prediction_error is used when deciding if a frame should be a keyframe. After reviewing this with Yaowu, it was pointed out that vp8cx_encode_intra_macro_block is only called for keyframes, so the accumulation is unnecessary. Change-Id: Id79dc81b80d4f5d124f3a0dba1b923887e2e1ec8