If the source image has a native handle and the encoder supports
the native handle, the encoder is expected to be able to correctly
sample/scale the source.
And VTCompressionSession can handle this, so DCHECK the frame
resolution only if the frame buffer is not native.
Bug: webrtc:14318
Change-Id: Id19c2f3bd86e9a2e1034d20e0255b4adc04a781f
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/270144
Reviewed-by: Kári Helgason <kthelgason@webrtc.org>
Commit-Queue: Kári Helgason <kthelgason@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#37730}