Add the client for accessing Subresource Filter only list.

components/subresource_filter/content/browser/content_subresource_filter_driver_factory.h

Index: components/subresource_filter/content/browser/content_subresource_filter_driver_factory.h
diff --git a/components/subresource_filter/content/browser/content_subresource_filter_driver_factory.h b/components/subresource_filter/content/browser/content_subresource_filter_driver_factory.h
index ee1abdaf0b06ebf4ff0bd5f7da07a6ed953cf277..56a1aa90a089430bf04e56ad19a81a22750e0911 100644
--- a/components/subresource_filter/content/browser/content_subresource_filter_driver_factory.h
+++ b/components/subresource_filter/content/browser/content_subresource_filter_driver_factory.h
@@ -152,9 +152,12 @@ class ContentSubresourceFilterDriverFactory
       const content::Referrer& referrer,
       ui::PageTransition page_transition);
 
-  bool DidURLMatchCurrentActivationList(const GURL& url) const;
+  bool DidURLMatchActivationList(const GURL& url,
+                                 ActivationList match_type) const;
 
   void AddActivationListMatch(const GURL& url, ActivationList match_type);
+  int CalculateHitPatternForActivationList(
+      ActivationList activation_list) const;
   void RecordRedirectChainMatchPattern() const;
 
   std::unique_ptr<SubresourceFilterClient> client_;
@@ -174,6 +177,8 @@ class ContentSubresourceFilterDriverFactory
   // current page.
   DocumentLoadStatistics aggregated_document_statistics_;
 
+  bool subresource_filter_only_hit_;
+
   DISALLOW_COPY_AND_ASSIGN(ContentSubresourceFilterDriverFactory);
 };