Add tests for FeaturePolicy integration with RenderFrameHost

content/browser/frame_host/render_frame_host_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/frame_host/render_frame_host_impl.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 1985 matching lines @@
 
   std::string old_name = frame_tree_node()->frame_name();
   frame_tree_node()->SetFrameName(name, unique_name);
   if (old_name.empty() && !name.empty())
     frame_tree_node_->render_manager()->CreateProxiesForNewNamedFrame();
   delegate_->DidChangeName(this, name);
 }
 
 void RenderFrameHostImpl::OnDidSetFeaturePolicyHeader(
     const ParsedFeaturePolicyHeader& parsed_header) {
+  DCHECK(!feature_policy_->HasSetHeaderPolicy());
   frame_tree_node()->SetFeaturePolicyHeader(parsed_header);
   ResetFeaturePolicy();
   feature_policy_->SetHeaderPolicy(parsed_header);
 }
 
 void RenderFrameHostImpl::OnDidAddContentSecurityPolicies(
     const std::vector<ContentSecurityPolicy>& policies) {
   TRACE_EVENT1("navigation",
                "RenderFrameHostImpl::OnDidAddContentSecurityPolicies",
                "frame_tree_node", frame_tree_node_->frame_tree_node_id());
@@ skipping 1918 matching lines @@
 }
 
 void RenderFrameHostImpl::ForwardGetInterfaceToRenderFrame(
     const std::string& interface_name,
     mojo::ScopedMessagePipeHandle pipe) {
   GetRemoteInterfaces()->GetInterface(interface_name, std::move(pipe));
 }
 #endif
 
 }  // namespace content