The CL fixes adds tests that fully test the functions that manipulate the cricket::VideoFormat<->AVCaptureDeviceFormat
relation.
BUG=webrtc:6680
Review-Url: https://codereview.webrtc.org/2526813002
Cr-Commit-Position: refs/heads/master@{#15444}
Increases readibility and helps with the formating.
BUG=webrtc:6680
Review-Url: https://codereview.webrtc.org/2488973002
Cr-Commit-Position: refs/heads/master@{#15206}