TEST ONLY: Duplicate FP rather than modifying in place

content/child/blink_platform_impl.h

Index: content/child/blink_platform_impl.h
diff --git a/content/child/blink_platform_impl.h b/content/child/blink_platform_impl.h
index 2199c8d7283e9494369813c0f3a7b0c9bb48190f..bd33f51eedf36f193a542417a9daabcbd4717e7b 100644
--- a/content/child/blink_platform_impl.h
+++ b/content/child/blink_platform_impl.h
@@ -126,8 +126,9 @@ class CONTENT_EXPORT BlinkPlatformImpl
       const blink::WebParsedFeaturePolicyHeader& containerPolicy,
       const blink::WebParsedFeaturePolicyHeader& policyHeader,
       const blink::WebSecurityOrigin& origin) override;
-  void resetFeaturePolicyOrigin(blink::WebFeaturePolicy* parentPolicy,
-                                const blink::WebSecurityOrigin&) override;
+  blink::WebFeaturePolicy* duplicateFeaturePolicyWithOrigin(
+      const blink::WebFeaturePolicy& policy,
+      const blink::WebSecurityOrigin& new_origin) override;
 
  private:
   void InternalInit();