We're moving vibrate out of the V1 MVP; we should move all instances of it behind the featurePolicyExperimentalFeatures flag.
This was already partially done in https://crrev.com/a2d89c5a6f, but to finish it up, we should also move the parsing code in third_party/WebKit/Source/platform/feature_policy/FeaturePolicy.cpp behind that flag as well, so that the feature name is not recognized in iframe allow attribute values.
Comment 1 by lunalu@chromium.org
, Apr 12 2017