RulesRegistryWithCache::ProcessChangedRules speed-up

chrome/browser/extensions/api/declarative/rules_registry_with_cache.h

Index: chrome/browser/extensions/api/declarative/rules_registry_with_cache.h
diff --git a/chrome/browser/extensions/api/declarative/rules_registry_with_cache.h b/chrome/browser/extensions/api/declarative/rules_registry_with_cache.h
index bc8010e06d95bf98db1140ad38aa2d9adcde12dd..ff8318831d6c2a8745a3c70f9c47b4df0a23f31c 100644
--- a/chrome/browser/extensions/api/declarative/rules_registry_with_cache.h
+++ b/chrome/browser/extensions/api/declarative/rules_registry_with_cache.h
@@ -187,6 +187,10 @@ class RulesRegistryWithCache : public RulesRegistry {
   // safe. The registry only ever associates with one RuleStorageOnUI instance.
   const base::WeakPtr<RuleStorageOnUI> storage_on_ui_;
 
+  // If true then a task to call ProcessChangedRules is scheduled for execution
+  // in the future.
+  bool process_changed_rules_requested_;
+
   DISALLOW_COPY_AND_ASSIGN(RulesRegistryWithCache);
 };