GitLab

DmabufVideoFramePool is used to allocate and recycle DMA-buf backed
VideoFrames. It is used by hardware accelerated video decoder. Besides
allocating and recycling VideoFrame, it also provide these functions:

- Limit the number of buffers to prevent client from draining the
memory.
- Query the original frame by the wrapped frame.

BUG=941330
TEST=media_unittests

Change-Id: I368d620fa0c8fb2b1a03c3479c08bad54acd55da
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1527911
Commit-Queue: Chih-Yu Huang <akahuang@chromium.org>
Auto-Submit: Chih-Yu Huang <akahuang@chromium.org>
Reviewed-by: Hirokazu Honda <hiroh@chromium.org>
Reviewed-by: Alexandre Courbot <acourbot@chromium.org>
Reviewed-by: David Staessens <dstaessens@chromium.org>
Reviewed-by: Dan Sanders <sandersd@chromium.org>
Cr-Commit-Position: refs/heads/master@{#664664}