Ship navigator.vibrate behind featurePolicyExperimentalFeatures flag

third_party/WebKit/Source/modules/vibration/NavigatorVibration.cpp

Index: third_party/WebKit/Source/modules/vibration/NavigatorVibration.cpp
diff --git a/third_party/WebKit/Source/modules/vibration/NavigatorVibration.cpp b/third_party/WebKit/Source/modules/vibration/NavigatorVibration.cpp
index b4dd1b77011ea8b5bf442281fe2b681abb63fc76..4359602d0cd28d4bca825ad40b72a1a9d2ed47d0 100644
--- a/third_party/WebKit/Source/modules/vibration/NavigatorVibration.cpp
+++ b/third_party/WebKit/Source/modules/vibration/NavigatorVibration.cpp
@@ -81,6 +81,7 @@ bool NavigatorVibration::vibrate(Navigator& navigator,
   // TODO(lunalu): When FeaturePolicy is ready, take out the check for the
   // runtime flag. Please pay attention to the user gesture code below.
   if (RuntimeEnabledFeatures::featurePolicyEnabled() &&
+      RuntimeEnabledFeatures::featurePolicyExperimentalFeaturesEnabled() &&
       !frame->isFeatureEnabled(blink::WebFeaturePolicyFeature::Vibrate)) {
     frame->domWindow()->printErrorMessage(
         "Navigator.vibrate() is not enabled in feature policy for this "