zijiehe 299b67809a DxgiOutputDuplicator should initialize num_frames_captured_
Otherwise Check failed: !!last_frame_ == num_frames_captured_ > 0 (1 vs. 0) may
be triggered.

BUG=webrtc:7339

Review-Url: https://codereview.webrtc.org/2755493003
Cr-Commit-Position: refs/heads/master@{#17266}
2017-03-15 22:52:20 +00:00
..
2017-03-10 21:30:04 +00:00
2016-11-16 19:11:38 +00:00