Make content::FeaturePolicy implement WebFeaturePolicy, and use it in blink code

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index 3beb56b79bd12456d919de368f5fdace3c017a25..a6c1b952758ac330a2358ee05f2bcbde597f47fe 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -3351,8 +3351,10 @@ void RenderFrameHostImpl::ResetFeaturePolicy() {
   RenderFrameHostImpl* parent_frame_host = GetParent();
   const FeaturePolicy* parent_policy =
       parent_frame_host ? parent_frame_host->get_feature_policy() : nullptr;
+  // TODO(iclelland): Get the frame owner properties here to reset properly.
+  ParsedFeaturePolicyHeader container_policy;
   feature_policy_ = FeaturePolicy::CreateFromParentPolicy(
-      parent_policy, nullptr, last_committed_origin_);
+      parent_policy, container_policy, last_committed_origin_);
 }
 
 void RenderFrameHostImpl::Create(