In this CL:
- EndToEndTests is now parameterized.
- Added VP8 non-rotated unittest.
- CanReceiveUlpfec/CanReceiveFlexFec now use multisets for timestamps.
- pre_decode_image_callback_ is now called before decoding a frame
with the new video jitter buffer.
- Set video rotation when FrameObjects are created.
- Calculate KeyFramesReceivedInPermille in new video jitter buffer.
BUG=webrtc:5514
Review-Url: https://codereview.webrtc.org/2522493002
Cr-Commit-Position: refs/heads/master@{#15274}