
Implement debugQuickLookObject for RTCI420Buffers and RTCCVPixelBuffers. Also draw gradients consistently regardless of endianness in the unit tests for RTCCVPixelBuffers and ObjCVideoTrackSource. Bug: webrtc:9007 Change-Id: Ia5a3d0905a763efc190165471983061fc07551f2 Reviewed-on: https://webrtc-review.googlesource.com/64987 Commit-Queue: Anders Carlsson <andersc@webrtc.org> Reviewed-by: Kári Helgason <kthelgason@webrtc.org> Cr-Commit-Position: refs/heads/master@{#22746}