Clear in-memory caches of renderers when rules change

chrome/browser/extensions/api/declarative_webrequest/webrequest_rules_registry.cc

Index: chrome/browser/extensions/api/declarative_webrequest/webrequest_rules_registry.cc
diff --git a/chrome/browser/extensions/api/declarative_webrequest/webrequest_rules_registry.cc b/chrome/browser/extensions/api/declarative_webrequest/webrequest_rules_registry.cc
index 12d5dac386458bc46fc163186acd74988a49640b..77bc9b8f44ef22fa8bbbf5a3aa67ed9398a29687 100644
--- a/chrome/browser/extensions/api/declarative_webrequest/webrequest_rules_registry.cc
+++ b/chrome/browser/extensions/api/declarative_webrequest/webrequest_rules_registry.cc
@@ -165,6 +165,8 @@ std::string WebRequestRulesRegistry::AddRulesImpl(
   }
   url_matcher_.AddConditionSets(all_new_condition_sets);
 
+  ClearCacheOnNavigation();
+
   return "";
 }
 
@@ -200,6 +202,8 @@ std::string WebRequestRulesRegistry::RemoveRulesImpl(
   // Clear URLMatcher based on condition_set_ids that are not needed any more.
   url_matcher_.RemoveConditionSets(remove_from_url_matcher);
 
+  ClearCacheOnNavigation();
+
   return "";
 }
 
@@ -214,6 +218,8 @@ std::string WebRequestRulesRegistry::RemoveAllRulesImpl(
       rule_identifiers.push_back(global_rule_id.second);
   }
 
+  // No need to call ClearCacheOnNavigation() here because RemoveRulesImpl
+  // takes care of that.
   return RemoveRulesImpl(extension_id, rule_identifiers);
 }
 
@@ -236,4 +242,8 @@ base::Time WebRequestRulesRegistry::GetExtensionInstallationTime(
   return extension_info_map_->GetInstallTime(extension_id);
 }
 
+void WebRequestRulesRegistry::ClearCacheOnNavigation() {
+  extension_web_request_api_helpers::ClearCacheOnNavigation();
+}
+
 }  // namespace extensions