Add tests for FeaturePolicy integration with RenderFrameHost

content/common/feature_policy/feature_policy.h

Index: content/common/feature_policy/feature_policy.h
diff --git a/content/common/feature_policy/feature_policy.h b/content/common/feature_policy/feature_policy.h
index 4f9be78420786fcaeb7d75048c86c5e012108bb6..18687bc4b168fba292cfacd8d993a8c7d3a710a8 100644
--- a/content/common/feature_policy/feature_policy.h
+++ b/content/common/feature_policy/feature_policy.h
@@ -176,6 +176,10 @@ class CONTENT_EXPORT FeaturePolicy : public blink::WebFeaturePolicy {
   // Unrecognized features will be ignored.
   void SetHeaderPolicy(const ParsedFeaturePolicyHeader& parsed_header);
 
+  // Returns true if a header policy has already been set on this feature
+  // policy.
+  bool HasSetHeaderPolicy() const;
+
  private:
   friend class FeaturePolicyTest;
   FRIEND_TEST_ALL_PREFIXES(NavigatorTestWithBrowserSideNavigation,