WebNN: Change the auto in MLPowerPreference to default
Update the IDL enum MLPowerPreference to change the auto value to
default in order to align the spec. [1]
[1] https://www.w3.org/TR/webnn/#dom-mlpowerpreference-default
Bug: 353552552
Change-Id: I24349022fcae47d54b53067f031a29fdd264c851
Cq-Include-Trybots: luci.chromium.try:win11-blink-rel,mac14.arm64-blink-rel,mac14-blink-rel
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5716629
Reviewed-by: ningxin hu ningxin.hu@intel.com
Commit-Queue: Bin Miao bin.miao@intel.com
Reviewed-by: Austin Sullivan asully@chromium.org
Cr-Commit-Position: refs/heads/main@{#1332800}