Replicate feature policy headers to remote frames

third_party/WebKit/Source/core/dom/SecurityContext.h

Index: third_party/WebKit/Source/core/dom/SecurityContext.h
diff --git a/third_party/WebKit/Source/core/dom/SecurityContext.h b/third_party/WebKit/Source/core/dom/SecurityContext.h
index f3114eac1c06d08d739ffb793ca5e1885da0994f..6cabfcc67d7d6ef1ad0d26e3743201574befb843 100644
--- a/third_party/WebKit/Source/core/dom/SecurityContext.h
+++ b/third_party/WebKit/Source/core/dom/SecurityContext.h
@@ -93,9 +93,12 @@ class CORE_EXPORT SecurityContext : public GarbageCollectedMixin {
   void enforceSuborigin(const Suborigin&);
 
   FeaturePolicy* getFeaturePolicy() const { return m_featurePolicy.get(); }
-  void setFeaturePolicy(std::unique_ptr<FeaturePolicy> newPolicy) {
+  void setFeaturePolicyForTesting(std::unique_ptr<FeaturePolicy> newPolicy) {
     m_featurePolicy = std::move(newPolicy);
   }
+  void setFeaturePolicyFromHeader(const String& headerValue,
+                                  SecurityContext* parentSecurityContext,
+                                  Vector<String>* messages = nullptr);
 
  protected:
   SecurityContext();