Implement YUVToARGBScaleClip() for PepperMediaStreamVideoTrackHost::ConvertFromMediaVideoFrame()

[Google Code Exporter]

https://code.google.com/p/chromium/codesearch#chromium/src/content/renderer/pepp
er/pepper_media_stream_video_track_host.cc&l=113

Only requires YV12, I420 no rotation -- using bilinear.

Should be covered by tests in:
https://code.google.com/p/chromium/codesearch#chromium/src/ppapi/tests/test_medi
a_stream_video_track.cc

Contact bbudge@ or other content/renderer/pepper/OWNERS for actual application 
usage.

Original issue reported on code.google.com by [e-mail] on 24 Jul 2015 at 9:36

[Google Code Exporter]

Need both RGBA and BGRA.

Original comment by [e-mail] on 24 Jul 2015 at 9:56