Part 3.6: Is policy list subsumed under subsuming policy?

third_party/WebKit/Source/core/frame/csp/SourceListDirective.h

Index: third_party/WebKit/Source/core/frame/csp/SourceListDirective.h
diff --git a/third_party/WebKit/Source/core/frame/csp/SourceListDirective.h b/third_party/WebKit/Source/core/frame/csp/SourceListDirective.h
index fd4aa3117d3037759a0b9d29814e2172e6a67a8e..1deedac24a3d4db7d38357401a1038340a9b3bde 100644
--- a/third_party/WebKit/Source/core/frame/csp/SourceListDirective.h
+++ b/third_party/WebKit/Source/core/frame/csp/SourceListDirective.h
@@ -56,6 +56,8 @@ class CORE_EXPORT SourceListDirective final : public CSPDirective {
   FRIEND_TEST_ALL_PREFIXES(SourceListDirectiveTest, GetIntersectCSPSources);
   FRIEND_TEST_ALL_PREFIXES(SourceListDirectiveTest,
                            GetIntersectCSPSourcesSchemes);
+  FRIEND_TEST_ALL_PREFIXES(SourceListDirectiveTest, GetIntersectNonces);
+  FRIEND_TEST_ALL_PREFIXES(SourceListDirectiveTest, GetIntersectHashes);
   FRIEND_TEST_ALL_PREFIXES(CSPDirectiveListTest, GetSourceVector);
   FRIEND_TEST_ALL_PREFIXES(CSPDirectiveListTest, OperativeDirectiveGivenType);
 
@@ -96,10 +98,14 @@ class CORE_EXPORT SourceListDirective final : public CSPDirective {
   static void addSourceToMap(HashMap<String, CSPSource*>&, CSPSource*);
 
   bool hasSourceMatchInList(const KURL&, ResourceRequest::RedirectStatus) const;
+  HashSet<String> getIntersectNonces(const HashSet<String>& other);
+  HashSet<CSPHashValue> getIntersectHashes(const HashSet<CSPHashValue>& other);
   HeapVector<Member<CSPSource>> getIntersectCSPSources(
       HeapVector<Member<CSPSource>> other);
   HashMap<String, CSPSource*> getIntersectSchemesOnly(
       HeapVector<Member<CSPSource>> other);
+  bool subsumesNoncesAndHashes(const HashSet<String>& nonces,
+                               const HashSet<CSPHashValue> hashes);
 
   Member<ContentSecurityPolicy> m_policy;
   HeapVector<Member<CSPSource>> m_list;