[subresource_filter] Remove some state from the driver factory

components/subresource_filter/content/browser/content_subresource_filter_throttle_manager.h

Index: components/subresource_filter/content/browser/content_subresource_filter_throttle_manager.h
diff --git a/components/subresource_filter/content/browser/content_subresource_filter_throttle_manager.h b/components/subresource_filter/content/browser/content_subresource_filter_throttle_manager.h
index 446296538270edd2d17cbcb930676fe1ef1962b3..846c822e815df4c97c883bfddc523cab95d7fd20 100644
--- a/components/subresource_filter/content/browser/content_subresource_filter_throttle_manager.h
+++ b/components/subresource_filter/content/browser/content_subresource_filter_throttle_manager.h
@@ -12,6 +12,7 @@
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "components/subresource_filter/content/browser/verified_ruleset_dealer.h"
+#include "components/subresource_filter/core/common/activation_decision.h"
 #include "components/subresource_filter/core/common/activation_state.h"
 #include "content/public/browser/web_contents_observer.h"
 
@@ -78,7 +79,8 @@ class ContentSubresourceFilterThrottleManager
   // page load.
   void NotifyPageActivationComputed(
       content::NavigationHandle* navigation_handle,
-      const ActivationState& activation_state);
+      const ActivationState& activation_state,
+      ActivationDecision activation_decision);
 
   // This method inspects |navigation_handle| and attaches navigation throttles
   // appropriately, based on the current state of frame activation.
@@ -101,6 +103,11 @@ class ContentSubresourceFilterThrottleManager
     return ruleset_handle_.get();
   }
 
+  // Returns the |ActivationDecision| for the current main frame document.
+  ActivationDecision GetActivationDecisionForLastCommittedPageLoad() const {
+    return activation_decision_;
+  }
+
  protected:
   // content::WebContentsObserver:
   void RenderFrameDeleted(content::RenderFrameHost* frame_host) override;
@@ -160,6 +167,9 @@ class ContentSubresourceFilterThrottleManager
   // should only be called at most once per main frame load.
   bool current_committed_load_has_notified_disallowed_load_ = false;
 
+  // The activation decision for the last committed main frame navigation.
+  ActivationDecision activation_decision_ = ActivationDecision::UNKNOWN;
+
   // These members outlive this class.
   VerifiedRulesetDealer::Handle* dealer_handle_;
   Delegate* delegate_;