tree c0fe1529a5bd43cf0b0b0391e7a79ea8294bbfb8
parent a437d1d1d0d6b3208763afc9157f89dd0d8c49b8
author Wan-Teh Chang <wtc@google.com> 1545248497 -0800
committer Wan-Teh Chang <wtc@google.com> 1545257179 +0000

Update stale comment that mentions ref_cnt_fb.

ref_cnt_fb was renamed assign_frame_buffer (and then
assign_frame_buffer_p). We missed this comment when ref_cnt_fb was
renamed.

BUG=aomedia:2230

Change-Id: Ie3d624eb853fc458bf0789b6edfce8169af052ec