webnn: support test WebNN API conformance tests using MLTensor
This CL is to deprecate compute() and use MLTensor.
Bug: 333791040
Change-Id: Iecd600245f291d26fd85da9ab6a0d1f05e25f6e9
Cq-Include-Trybots: luci.chromium.try:win11-blink-rel,mac14.arm64-blink-rel,mac15.arm64-blink-rel,linux-blink-rel
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5556220
Reviewed-by: Austin Sullivan asully@chromium.org
Reviewed-by: ningxin hu ningxin.hu@intel.com
Auto-Submit: Feng Dai feng.dai@intel.com
Commit-Queue: Feng Dai feng.dai@intel.com
Cr-Commit-Position: refs/heads/main@{#1381625}