At a high-level, we should add any necessary logging/metrics so we can answer the question, "how often do we fail at video playback and what are the top reasons?"

From Hiro:

We have three metrics for HW video decoder.
Media.GpuVideoDecoderInitializeStatus
Media.GpuVideoDecoderError
Media.GpuArcVideoDecodeAccelerator.InitializeResult

First two metrics are for pure Chrome video stack.
The last one is for ARC++ video stack.

But the three metrics Hiro listed don't provide a complete picture, hence filing this bug.

We should add metrics to track video playback failures (in Chrome, ARC++, the media app, etc - for both software and hardware decoding) so we can detect regressions - i.e. we should track if there are any major spikes.