Swap ownership of RulesetService and the content delegate

components/subresource_filter/content/browser/content_ruleset_service_delegate.h

Index: components/subresource_filter/content/browser/content_ruleset_service_delegate.h
diff --git a/components/subresource_filter/content/browser/content_ruleset_service_delegate.h b/components/subresource_filter/content/browser/content_ruleset_service_delegate.h
index ba5338c6fcdf18bbb4b24780a7aa434b667ab625..df4f9e3552868a38a9e19b89d8e2840755ac2635 100644
--- a/components/subresource_filter/content/browser/content_ruleset_service_delegate.h
+++ b/components/subresource_filter/content/browser/content_ruleset_service_delegate.h
@@ -14,6 +14,8 @@
 
 namespace subresource_filter {
 
+class RulesetService;
+
 // The content-layer specific implementation of RulesetServiceDelegate.
 //
 // Its main responsibility is receiving new versions of subresource filtering
@@ -54,6 +56,9 @@ class ContentRulesetServiceDelegate : public RulesetServiceDelegate,
   void PostAfterStartupTask(base::Closure task) override;
   void PublishNewRulesetVersion(base::File ruleset_data) override;
 
+  void set_ruleset_service(std::unique_ptr<RulesetService> ruleset_service);
+  RulesetService* ruleset_service();
+
  private:
   // content::NotificationObserver:
   void Observe(int type,
@@ -64,6 +69,8 @@ class ContentRulesetServiceDelegate : public RulesetServiceDelegate,
   base::File ruleset_data_;
   base::Closure ruleset_published_callback_;
 
+  std::unique_ptr<RulesetService> ruleset_service_;
+
   DISALLOW_COPY_AND_ASSIGN(ContentRulesetServiceDelegate);
 };