5adcd19875
To achieve this, the CL does the following - Adds sample mp4 video - Refactors the existing RTCFileVideoCapturer to achieve continious capture and adds tests. Bug: webrtc:8406 Change-Id: Ibc0891176c58ec9053b42e340d2113036e7199ec Reviewed-on: https://webrtc-review.googlesource.com/12180 Reviewed-by: Anders Carlsson <andersc@webrtc.org> Reviewed-by: Magnus Jedvert <magjed@webrtc.org> Commit-Queue: Daniela Jovanoska Petrenko <denicija@webrtc.org> Cr-Commit-Position: refs/heads/master@{#20598}