Make subresource filter activation agnostic of in-page navigations.

components/subresource_filter/content/renderer/subresource_filter_agent.cc

Index: components/subresource_filter/content/renderer/subresource_filter_agent.cc
diff --git a/components/subresource_filter/content/renderer/subresource_filter_agent.cc b/components/subresource_filter/content/renderer/subresource_filter_agent.cc
index 64b54b01044ffd0639f2251a2a4605fd5b14ecb8..05405c00b9a3b88998bed812659f29d7dc615c96 100644
--- a/components/subresource_filter/content/renderer/subresource_filter_agent.cc
+++ b/components/subresource_filter/content/renderer/subresource_filter_agent.cc
@@ -143,6 +143,9 @@ void SubresourceFilterAgent::DidStartProvisionalLoad() {
 void SubresourceFilterAgent::DidCommitProvisionalLoad(
     bool is_new_navigation,
     bool is_same_page_navigation) {
+  if (is_same_page_navigation)
+    return;
+
   RecordHistogramsOnLoadCommitted();
   if (activation_state_for_provisional_load_ != ActivationState::DISABLED &&
       ruleset_dealer_->IsRulesetAvailable()) {
@@ -159,6 +162,7 @@ void SubresourceFilterAgent::DidCommitProvisionalLoad(
     filter_for_last_committed_load_ = filter->AsWeakPtr();
     SetSubresourceFilterForCommittedLoad(std::move(filter));
   }
+
   activation_state_for_provisional_load_ = ActivationState::DISABLED;
 }