Implementation for feature policy - vibrate.

third_party/WebKit/Source/bindings/core/v8/ConditionalFeatures.cpp

Index: third_party/WebKit/Source/bindings/core/v8/ConditionalFeatures.cpp
diff --git a/third_party/WebKit/Source/bindings/core/v8/ConditionalFeatures.cpp b/third_party/WebKit/Source/bindings/core/v8/ConditionalFeatures.cpp
index b9501d6dd842674d51aa2b6b71fbbbf25caae1fb..6c0590a17eef60774116bb35d06414cfb113a1ce 100644
--- a/third_party/WebKit/Source/bindings/core/v8/ConditionalFeatures.cpp
+++ b/third_party/WebKit/Source/bindings/core/v8/ConditionalFeatures.cpp
@@ -76,7 +76,9 @@ bool isFeatureEnabledInFrame(const FeaturePolicy::Feature& feature,
                              const LocalFrame* frame) {
   // If there is no frame, or if feature policy is disabled, use defaults.
   bool enabledByDefault =
-      (feature.defaultPolicy != FeaturePolicy::FeatureDefault::DisableForAll);
+      (feature.defaultPolicy == FeaturePolicy::FeatureDefault::EnableForAll ||
+       (feature.defaultPolicy == FeaturePolicy::FeatureDefault::EnableForSelf &&
+        !frame->isCrossOriginSubframe()));
   if (!RuntimeEnabledFeatures::featurePolicyEnabled() || !frame)
     return enabledByDefault;
   FeaturePolicy* featurePolicy = frame->securityContext()->getFeaturePolicy();